EP0505696A2 - Electrode d'amorçage avec dispositif de chauffage - Google Patents

Electrode d'amorçage avec dispositif de chauffage Download PDF

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Publication number
EP0505696A2
EP0505696A2 EP92101758A EP92101758A EP0505696A2 EP 0505696 A2 EP0505696 A2 EP 0505696A2 EP 92101758 A EP92101758 A EP 92101758A EP 92101758 A EP92101758 A EP 92101758A EP 0505696 A2 EP0505696 A2 EP 0505696A2
Authority
EP
European Patent Office
Prior art keywords
temperature
heating
resistance
insulator
voltage
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Withdrawn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
EP92101758A
Other languages
German (de)
English (en)
Other versions
EP0505696A3 (fr
Inventor
Josef Dipl.-Ing. Kreutmair
Herbert Dipl.-Ing. Kleeblatt
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.)
Arvin Industries Deutschland GmbH
Original Assignee
Zeuna Starker GmbH and Co KG
MAN Technologie 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 Zeuna Starker GmbH and Co KG, MAN Technologie AG filed Critical Zeuna Starker GmbH and Co KG
Publication of EP0505696A2 publication Critical patent/EP0505696A2/fr
Publication of EP0505696A3 publication Critical patent/EP0505696A3/xx
Withdrawn legal-status Critical Current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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/18—Means for heating, e.g. for drying

Definitions

  • the invention relates to a method and a device for operating an electrical heating of ignition electrodes, the heating consisting of an electrical resistance material which is wound around the electrode insulator.
  • Ignition electrodes in particular burners and regeneration burners for particle filters, are exposed to combustion or exhaust gases, through which the ceramic insulation of the ignition electrode is coated with soot particles.
  • the high voltage connected between electrodes is dissipated due to the electrical conductivity of the soot and an arc is not formed or is not formed reliably.
  • the resistance of such heating is designed so that even under unfavorable conditions, such as. B. Too high voltage and high ambient temperature (in the case of a vehicle high vehicle electrical system voltage and high engine exhaust), the maximum permissible temperature at the electrode of approx. 800 - 1000 ° C is not exceeded in any case. This means that with a relatively low vehicle electrical system voltage and low exhaust gas temperature, a relatively long heating-up time of around 550 ° C is required to reach the soot burn-off temperature.
  • the invention has for its object to provide a method of the type mentioned, in which a reliable heating of ignition electrodes is possible despite changing operating conditions.
  • the heating device is operated with periodic voltage pulses, while a temperature measurement is carried out between each voltage pulse.
  • the temperature measurement can take place in every voltage pause or in every second, third or nth voltage pause.
  • the heating power is preferably regulated by temperature-dependent modulation of the voltage pulse widths.
  • the method according to the invention has the further advantage that an interruption or a short circuit in the electrode winding can also be diagnosed.
  • the invention extends to an apparatus for performing the method, which is characterized by the features of claims 6 and 7.
  • FIG. 1 shows an exhaust system 10 of an internal combustion engine with a particle filter 11 through which the exhaust gas 12 flows.
  • a pair of electrodes 13, 14 is arranged in the exhaust system 10, which is connected to a high-voltage source, not shown.
  • the ignition electrodes 13, 14 each consist of an electrode 15 and a ceramic insulator 16 which, when exposed to the exhaust gases 12, can be coated with soot on its outer surface 17.
  • a heater consisting of an electrical resistance wire 20 is provided in the insulator 16 and is supplied by a direct current source 21.
  • a control device 26 For a controlled heating of the insulators 16, a control device 26 is provided, which has a resistance temperature measuring device 28 and a processor 29.
  • the temperature measuring device 28 consists of a resistance measuring bridge R1 -R4, where R4 is the resistance of the heating wire 20 of the respective electrode 13.
  • a temperature measuring switch 31 and a heating circuit 35 are controlled by the processor 29.
  • the control unit 26 also contains a corresponding circuit for the second electrode 14. Both circuits are designed as parallel circuits and are controlled by a processor 29.
  • the temperature measuring switch 31 is closed by means of a control pulse and thus the resistance bridge is connected to the voltage U B , the potentials U34 and U12 of the resistance bridge 28 are recorded by the processor 29 and for calculating the instantaneous resistance value R4 of the heating wire 20 according to the following formula evaluated: which can be derived from the ratio U12 / U34. Finally, the instantaneous temperature T at the insulator is calculated via the resistance value R4 of the wire 20 and the resistance temperature function below.
  • R40 is the resistance value of the winding at 00C
  • n is an integer dependent on the resistance material
  • a is a temperature coefficient
  • the heating power for the insulator heater 20 is regulated by the processor 29. This is done by changing the pulse widths of a pulse-like voltage application for the resistance wire.
  • FIG. 2 shows the voltage U applied to the heating wire 20 as a function of the time t.
  • a voltage U34 is applied to the heating wire 20.
  • Measuring pulses 40 of constant time duration t T are output for temperature measurements.
  • the switch 35 is closed, whereby the heating wire 20 receives the battery voltage U B.
  • This load application takes place in a pulsed manner with a time duration t (T) which depends on the measured temperature T.
  • T time duration
  • a temperature measurement can be carried out in each case in the time span ⁇ t between two load pulses 41. In this case, it is advantageous if the temperature measurement and the load application are carried out alternately at a predetermined clock frequency.
  • the period D of the cycle depends on the maximum required pulse width t (T) max of the load pulse 41.
  • the state of the resistance wire 20 can also be monitored from the resistance measurement, in that interruptions and short circuits can be detected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Resistance Heating (AREA)
EP92101758A 1991-03-13 1992-02-04 Electrode d'amorçage avec dispositif de chauffage Withdrawn EP0505696A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4108034 1991-03-13
DE19914108034 DE4108034A1 (de) 1991-03-13 1991-03-13 Zuendelektrode mit heizeinrichtung

Publications (2)

Publication Number Publication Date
EP0505696A2 true EP0505696A2 (fr) 1992-09-30
EP0505696A3 EP0505696A3 (fr) 1994-03-16

Family

ID=6427131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101758A Withdrawn EP0505696A2 (fr) 1991-03-13 1992-02-04 Electrode d'amorçage avec dispositif de chauffage

Country Status (2)

Country Link
EP (1) EP0505696A2 (fr)
DE (1) DE4108034A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025810B2 (en) 2004-01-13 2006-04-11 Arvin Technologies, Inc. Method and apparatus for shutting down a fuel-fired burner of an emission abatement assembly
US7118613B2 (en) 2004-01-13 2006-10-10 Arvin Technologies, Inc. Method and apparatus for cooling the components of a control unit of an emission abatement assembly
US7243489B2 (en) 2004-01-13 2007-07-17 Arvin Technologies, Inc. Method and apparatus for monitoring engine performance as a function of soot accumulation in a filter
US7581389B2 (en) 2004-01-13 2009-09-01 Emcon Technologies Llc Method and apparatus for monitoring ash accumulation in a particulate filter of an emission abatement assembly
WO2009091468A3 (fr) * 2008-01-15 2009-10-01 Emcon Technologies Llc Procédé et appareil de nettoyage des électrodes d'un brûleur chauffé au carburant d'un ensemble de limitation des rejets
US7628011B2 (en) 2004-01-13 2009-12-08 Emcon Technologies Llc Emission abatement assembly and method of operating the same
US7685811B2 (en) 2004-01-13 2010-03-30 Emcon Technologies Llc Method and apparatus for controlling a fuel-fired burner of an emission abatement assembly
US7908847B2 (en) 2004-01-13 2011-03-22 Emcon Technologies Llc Method and apparatus for starting up a fuel-fired burner of an emission abatement assembly
US8641411B2 (en) 2004-01-13 2014-02-04 Faureua Emissions Control Technologies, USA, LLC Method and apparatus for directing exhaust gas through a fuel-fired burner of an emission abatement assembly
US8789363B2 (en) 2007-06-13 2014-07-29 Faurecia Emissions Control Technologies, Usa, Llc Emission abatement assembly having a mixing baffle and associated method
CN109962408A (zh) * 2017-12-26 2019-07-02 天津大学（青岛）海洋工程研究院有限公司 一种内燃机新型点火装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061458B4 (de) * 2000-12-09 2005-12-15 Eichenauer Heizelemente Gmbh & Co. Kg Verfahren und Vorrichtung zum Regeln einer Kfz-Zusatzheizung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789190A (en) * 1972-10-17 1974-01-29 A J Matlen Temperature regulation for electrical heater
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4086466A (en) * 1976-04-30 1978-04-25 Scharlack Ronald S Automatic heater controller
DE3304023A1 (de) * 1982-02-08 1983-08-11 Töcksfors Verkstads AB, 67010 Töcksfors Kreiseinrichtung zur temperaturregelung eines elektrischen heizelementes
DE3742102A1 (de) * 1987-12-11 1989-06-22 Beru Werk Ruprecht Gmbh Co A Verfahren zum regeln eines heizelementes und heizelement zur durchfuehrung dieses verfahrens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1426173A1 (de) * 1962-02-12 1969-01-23 Bern Werk Albert Ruprecht Regelung der elektrischen Leistung von Heizelementen,z.B. von Gluehkerzen
DE1295111B (de) * 1964-06-03 1969-05-14 Bayer Ag Verfahren und Vorrichtung zur elektrischen Beheizung und Regelung der Temperatur von duennen Schichten
DE3704534C1 (de) * 1987-02-13 1988-10-27 Bert Dr-Ing Kueppers Schaltungsanordnung fuer temperaturabhaengige Heizelemente
DE3804442A1 (de) * 1988-02-12 1989-08-24 Bert Prof Dr Ing Kueppers Schaltungsanordnung fuer temperaturabhaengige heizelemente
DE3809110C2 (de) * 1988-03-18 1995-10-12 Wolfgang Dipl Ing Sass Einrichtung zur Gasmassenstrommessung
DE3815488A1 (de) * 1988-05-06 1989-11-16 Auergesellschaft Gmbh Schaltungsanordnung zum abgleichen katalytisch aktiver messsensoren fuer messgroessenaufnehmer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789190A (en) * 1972-10-17 1974-01-29 A J Matlen Temperature regulation for electrical heater
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4086466A (en) * 1976-04-30 1978-04-25 Scharlack Ronald S Automatic heater controller
DE3304023A1 (de) * 1982-02-08 1983-08-11 Töcksfors Verkstads AB, 67010 Töcksfors Kreiseinrichtung zur temperaturregelung eines elektrischen heizelementes
DE3742102A1 (de) * 1987-12-11 1989-06-22 Beru Werk Ruprecht Gmbh Co A Verfahren zum regeln eines heizelementes und heizelement zur durchfuehrung dieses verfahrens

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025810B2 (en) 2004-01-13 2006-04-11 Arvin Technologies, Inc. Method and apparatus for shutting down a fuel-fired burner of an emission abatement assembly
US7118613B2 (en) 2004-01-13 2006-10-10 Arvin Technologies, Inc. Method and apparatus for cooling the components of a control unit of an emission abatement assembly
US7243489B2 (en) 2004-01-13 2007-07-17 Arvin Technologies, Inc. Method and apparatus for monitoring engine performance as a function of soot accumulation in a filter
US7581389B2 (en) 2004-01-13 2009-09-01 Emcon Technologies Llc Method and apparatus for monitoring ash accumulation in a particulate filter of an emission abatement assembly
US7628011B2 (en) 2004-01-13 2009-12-08 Emcon Technologies Llc Emission abatement assembly and method of operating the same
US7685811B2 (en) 2004-01-13 2010-03-30 Emcon Technologies Llc Method and apparatus for controlling a fuel-fired burner of an emission abatement assembly
US7908847B2 (en) 2004-01-13 2011-03-22 Emcon Technologies Llc Method and apparatus for starting up a fuel-fired burner of an emission abatement assembly
US8641411B2 (en) 2004-01-13 2014-02-04 Faureua Emissions Control Technologies, USA, LLC Method and apparatus for directing exhaust gas through a fuel-fired burner of an emission abatement assembly
US8789363B2 (en) 2007-06-13 2014-07-29 Faurecia Emissions Control Technologies, Usa, Llc Emission abatement assembly having a mixing baffle and associated method
US9328640B2 (en) 2007-06-13 2016-05-03 Faurecia Emissions Control Technologies, Usa, Llc Emission abatement assembly having a mixing baffle and associated method
WO2009091468A3 (fr) * 2008-01-15 2009-10-01 Emcon Technologies Llc Procédé et appareil de nettoyage des électrodes d'un brûleur chauffé au carburant d'un ensemble de limitation des rejets
CN109962408A (zh) * 2017-12-26 2019-07-02 天津大学（青岛）海洋工程研究院有限公司 一种内燃机新型点火装置

Also Published As

Publication number Publication date
DE4108034A1 (de) 1992-09-17
EP0505696A3 (fr) 1994-03-16

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