WO2006009523A1 - Procede permettant de determiner et de reguler la temperature d'un tube a incandescence - Google Patents

Procede permettant de determiner et de reguler la temperature d'un tube a incandescence Download PDF

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Publication number
WO2006009523A1
WO2006009523A1 PCT/SI2005/000022 SI2005000022W WO2006009523A1 WO 2006009523 A1 WO2006009523 A1 WO 2006009523A1 SI 2005000022 W SI2005000022 W SI 2005000022W WO 2006009523 A1 WO2006009523 A1 WO 2006009523A1
Authority
WO
WIPO (PCT)
Prior art keywords
glow
plug
voltage
temperature
heating
Prior art date
Application number
PCT/SI2005/000022
Other languages
English (en)
Inventor
Urban Simoncic
Damjan Golob
Robert Kovacic
Mark Plesko
Original Assignee
Cosylab, D.O.O.
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 Cosylab, D.O.O. filed Critical Cosylab, D.O.O.
Priority to EP05759454A priority Critical patent/EP1787022A1/fr
Publication of WO2006009523A1 publication Critical patent/WO2006009523A1/fr

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
    • 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
    • F02P19/025—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 with means for determining glow plug temperature or glow plug resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control

Definitions

  • This invention relates to the field of diesel engine cold start equipment, in particular to the field of control of glow plugs for diesel engine preheating.
  • the problem to be solved is glow plug control, wherein the temperature of the glow tip is determined from the measured voltage between the electrode and the glow tube and the heating power supplied to the glow plug is adjusted based on the such determined temperature.
  • the goal of the invention is to simplify the glow plug temperature regulation, to reduce temperature deviation from the target temperature and to preserve a simple construction of the glow plug or even to simplify it.
  • the activity of glow plugs which enable fuel self-ignition in diesel engines while it is not warm enough, is in general determined by the glow plug controller.
  • the glow plug controller can be a simple switch, which connects the glow plugs to the power supply when their operation is required and disconnects them when their operation is no longer required. In this case the glow plugs must be of self-regulating type.
  • the glow plug temperature is affected by several factors. The supply voltage that determines the power supplied to the glow plugs can vary considerable. Also the glow plug cooling varies considerable in different engine operation regimes. None of the mentioned factors is compensated by the simplest glow plug controllers, therefore the glow plugs usually do not operate at the optimal temperature. If the plug temperature is too low, the conditions for fuel ignition at the right time are not satisfied.
  • glow plug controllers regulate the supplied electric power. As many factors as possible that affect the glow tip temperature are considered for the regulation. Some important factors can be easily measured and compensated for directly by the controller, such as the variations in the supply voltage. But data about the engine operation regime must be obtained by the controller from other devices. This loads communication lines, complicates software and increases the possibility for failures. Besides, a lot of effort is necessary at the engine development stage to measure glow plug cooling at all relevant engine operation regimes.
  • Patents JP59068569 and JP56066456 treat glow tip temperature measurement by thermal voltage measurement on a sensor embedded in the glow plug. These dedicated thermocouple sensors may measure the temperature precisely, but the solution is expensive due to the integration of an additional thermocouple in the glow tip and the corresponding electric feed wiring. These additional elements are not required in the present invention. Another advantage of the present invention is that it can be used on existing models and types of plugs.
  • the main idea of the invention is a regulation of the supplied power, with regard to the measured thermal voltage between joints of different materials in the glow part of the plug, regardless of how the aforementioned thermal voltage is measured.
  • the thermal voltage on the glow part of the plug is preferably measured by measuring the voltage between the electrode and the glow tube.
  • the term "thermal voltage”, as used in this patent, is the voltage that appears in an electric circuit, which consists of conductors of different materials and where the joints between the conductors are on different temperatures.
  • the measured thermal voltage is used, which appears predominantly on the glow part of the glow plug.
  • the temperature of the glow tip is determined from the value of the thermal voltage. This temperature and the reference temperature is used by a controller to regulate the electric heating power. Pulse width modulation is preferably used for adjusting the electric heating power, wherein the current that heats the plug is alternately
  • the time between pulses, when the switch is turned off, is taken advantage of to determine the voltage between the electrode and the glow tube.
  • the average power the plug receives can be set by choosing the width of the pulses or their period. The required power is determined from the measured temperature and the given target temperature of the glow tip.
  • the glow part 1 of the plug has a considerably higher temperature than the other parts. Therefore the thermal voltages on the joints between different metals in the glow part of the plug are much higher than all the other thermal voltage on other joints in the circuit that occurs when the voltage between the electrode 2 and the glow tube 3 is measured.
  • the solution in accordance with the invention works equally well with any number of elements and joints in the plug.
  • the joint 6 between the glow tube and the heating element 5, which is usually the heating coil, and the joint 8 between the heating element 5 and the electrode 2 of the plug always exist.
  • the amplitude of the thermal voltage on a single joint depends on the temperature of the joint and on the composition of both materials. With a suitable selection of materials, it is achieved that the voltages on all joints do not cancel out.

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)
  • Control Of Resistance Heating (AREA)

Abstract

L'invention concerne la régulation de la température d'un tube à incandescence, la tension mesurée entre l'électrode (2) et le tube à incandescence (3) étant utilisée pour réguler la puissance électrique amenée à la partie à incandescence de la bougie. La bougie est de préférence alimentée par une tension modulée en largeur d'impulsion. Par modification de la largeur de l'impulsion ou de sa période, la puissance de chauffage électrique moyenne est modifiée. La tension entre l'électrode et le tube à incandescence est mesurée à certains intervalles temporels, lorsqu'il n'y a pas de tension d'alimentation de puissance appliquée sur la partie à incandescence. La température de la partie à incandescence de la bougie est déterminée à partir de cette tension, parce qu'elle est constituée principalement de la tension thermique de la partie à incandescence de la bougie lorsque cette dernière est chaude. La régulation du chauffage de la bougie à incandescence permet de garder une température constante de la partie à incandescence de la bougie, sans connaître son état de refroidissement ou de chauffage. En conséquence, l'unité de commande ne reçoit que des commandes de marche et arrêt et éventuellement la température voulue de la bougie à un moment donné. Pour maintenir une température constante, l'unité de commande n'a pas à recevoir de données concernant le régime de fonctionnement du moteur qui permettrait d'induire la puissance de chauffage nécessaire. Etant donné que les données concernant le régime de fonctionnement du moteur ne sont pas requises, il n'est pas nécessaire non plus d'évaluer leur effet sur le refroidissement et le chauffage de la bougie.
PCT/SI2005/000022 2004-07-19 2005-07-19 Procede permettant de determiner et de reguler la temperature d'un tube a incandescence WO2006009523A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05759454A EP1787022A1 (fr) 2004-07-19 2005-07-19 Procede permettant de determiner et de reguler la temperature d'un tube a incandescence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI200400212A SI21858A (sl) 2004-07-19 2004-07-19 Postopek dolocanja in regulacije temperature zarilne svecke
SIP-200400212 2004-07-19

Publications (1)

Publication Number Publication Date
WO2006009523A1 true WO2006009523A1 (fr) 2006-01-26

Family

ID=35376930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2005/000022 WO2006009523A1 (fr) 2004-07-19 2005-07-19 Procede permettant de determiner et de reguler la temperature d'un tube a incandescence

Country Status (3)

Country Link
EP (1) EP1787022A1 (fr)
SI (1) SI21858A (fr)
WO (1) WO2006009523A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1933025A1 (fr) * 2006-12-16 2008-06-18 GM Global Technology Operations, Inc. Système et méthode pour contrôler des charges résistives avec masse connectée à la masse du moteur
WO2010012344A1 (fr) * 2008-07-26 2010-02-04 Beru Aktiengesellschaft Procédé pour appliquer du courant à une bougie de préchauffage
CN101818714A (zh) * 2009-02-27 2010-09-01 罗伯特.博世有限公司 用于车辆的电热塞控制器
GB2520109A (en) * 2013-08-24 2015-05-13 Peter John Bayram 4-stroke, glow plug & compression ignited, semi-diesel engines with active glow plug technology

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493734A (en) * 1978-01-04 1979-07-25 Ngk Spark Plug Co Ltd Heating apparatus for combustion chamber of internal combustion engine
JPS5968569A (ja) * 1982-10-14 1984-04-18 Nissan Motor Co Ltd デイ−ゼルエンジンの予熱制御装置
US5144922A (en) * 1990-11-01 1992-09-08 Southwest Research Institute Fuel ignition system for compression ignition engines
DE19718750A1 (de) * 1996-05-10 1997-11-13 Volkswagen Ag Verfahren und Vorrichtung zur Temperaturmessung von Glühkerzen einer selbstzündenden Brennkraftmaschine
DE19810000A1 (de) * 1998-03-09 1999-09-16 Eberspaecher J Gmbh & Co Glühelement mit einem elektrischen Heizdraht zum Zünden eines Brennstoffes zu einer Flamme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU115584A (en) * 1984-07-02 1987-06-30 Iskra Sozd Elektro Indus Circuit for automatic controlled glowing device
DE3738055A1 (de) * 1987-11-09 1989-05-18 Siemens Ag Verfahren zur temperaturregelung von gluehkerzen bei dieselmotoren und schaltungsanordnung zur durchfuehrung des verfahrens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493734A (en) * 1978-01-04 1979-07-25 Ngk Spark Plug Co Ltd Heating apparatus for combustion chamber of internal combustion engine
JPS5968569A (ja) * 1982-10-14 1984-04-18 Nissan Motor Co Ltd デイ−ゼルエンジンの予熱制御装置
US5144922A (en) * 1990-11-01 1992-09-08 Southwest Research Institute Fuel ignition system for compression ignition engines
DE19718750A1 (de) * 1996-05-10 1997-11-13 Volkswagen Ag Verfahren und Vorrichtung zur Temperaturmessung von Glühkerzen einer selbstzündenden Brennkraftmaschine
DE19810000A1 (de) * 1998-03-09 1999-09-16 Eberspaecher J Gmbh & Co Glühelement mit einem elektrischen Heizdraht zum Zünden eines Brennstoffes zu einer Flamme

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 003, no. 116 (M - 074) 27 September 1979 (1979-09-27) *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 177 (M - 317) 15 August 1984 (1984-08-15) *
See also references of EP1787022A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1933025A1 (fr) * 2006-12-16 2008-06-18 GM Global Technology Operations, Inc. Système et méthode pour contrôler des charges résistives avec masse connectée à la masse du moteur
WO2010012344A1 (fr) * 2008-07-26 2010-02-04 Beru Aktiengesellschaft Procédé pour appliquer du courant à une bougie de préchauffage
US8614407B2 (en) 2008-07-26 2013-12-24 Borgwarner Beru Systems Gmbh Method for supplying current to a glow plug
CN101818714A (zh) * 2009-02-27 2010-09-01 罗伯特.博世有限公司 用于车辆的电热塞控制器
EP2224124A1 (fr) * 2009-02-27 2010-09-01 Robert Bosch GmbH Contrôleur de bougie de préchauffage pour véhicules
GB2520109A (en) * 2013-08-24 2015-05-13 Peter John Bayram 4-stroke, glow plug & compression ignited, semi-diesel engines with active glow plug technology

Also Published As

Publication number Publication date
EP1787022A1 (fr) 2007-05-23
SI21858A (sl) 2006-02-28

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