WO2013060594A1 - Verfahren und vorrichtung zur bestimmung einer oberflächentemperatur einer glühstiftkerze in einem verbrennungsmotor - Google Patents

Verfahren und vorrichtung zur bestimmung einer oberflächentemperatur einer glühstiftkerze in einem verbrennungsmotor Download PDF

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Publication number
WO2013060594A1
WO2013060594A1 PCT/EP2012/070416 EP2012070416W WO2013060594A1 WO 2013060594 A1 WO2013060594 A1 WO 2013060594A1 EP 2012070416 W EP2012070416 W EP 2012070416W WO 2013060594 A1 WO2013060594 A1 WO 2013060594A1
Authority
WO
WIPO (PCT)
Prior art keywords
glow plug
surface temperature
internal combustion
ker
combustion engine
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.)
Ceased
Application number
PCT/EP2012/070416
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter Kappelmann
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
Priority to CN201280052716.5A priority Critical patent/CN103890380A/zh
Priority to EP12780462.3A priority patent/EP2771567B1/de
Priority to JP2014537555A priority patent/JP6027126B2/ja
Priority to US14/354,737 priority patent/US20150036720A1/en
Publication of WO2013060594A1 publication Critical patent/WO2013060594A1/de
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • 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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current

Definitions

  • the invention relates to a method for determining a surface temperature of a glow plug in an internal combustion engine, in which a physical parameter is used to determine the surface temperature and an apparatus for performing the method.
  • Glow plugs which are used in internal combustion engines for igniting a fuel-air mixture, have a heater, which preheats the cold glow plug to a temperature that is high enough for the ignition of the fuel-air mixture.
  • the distribution of the temperature from the heater over the entire glow plug is very inhomogeneous, so that there are temperature differences between the temperature of the heater, which is located inside the glow plug and the temperature at the surface of the glow plug.
  • the surface of the glow plug is always cooled by the fuel-air mixture that flows past the glow plug during a dynamic operation of the internal combustion engine, so that the surface of the glow plug never the temperature of the heater in the Interior of the glow plug has.
  • the temperature of the glow plug is to be subjected to a control, this is done as a function of the resistance of a heater inside the glow plug, from which the crizistwert the temperature is determined.
  • the higher the temperature of the heater designed as a current-carrying wire the greater the resistance. Due to the occurring temperature difference the quality of the control of the Glühwkerzentemperatur is not sufficient, since it is not based on a temperature that actually occurs on the surface of the glow plug.
  • the object of the invention is to specify a method and a device for determining a surface temperature of a glow plug in an internal combustion engine, in which an accurate surface temperature can be determined with reduced computation or development effort.
  • the object is achieved in that at least two physical parameters of the glow plug are used to determine the surface temperature of the glow plug. This has the advantage that it is possible to dispense with unconcrete statements, which are caused by the use of partially estimated operating parameters of the internal combustion engine. This results in a simplified application and a more robust
  • At least one of the at least two physical parameters for determining the surface temperature of the glow plug on the glow plug is measured during its operation. Since the current operating If the glow plug is used to determine the surface temperature via its current physical parameters, the accuracy of the surface temperature determined in this way improves.
  • at least one of the two physical parameters of the glow plug is calculated from at least one further physical parameter which is measured on the glow plug during its operation. This ensures at all times that the calculated physical parameter is directly related to the current operating state of the glow plug, whereby accurate, derived from the actual operating parameters of the glow plug surface temperatures are determined.
  • the at least one calculated physical parameter is stored in a characteristic map, wherein this at least one physical parameter is read from the characteristic diagram for calculating the surface temperature of the glow plug.
  • This indirect determination of the surface temperature allows a one-time determination of the map for the respective glow plug used, this map can be used at any time during operation of the glow plug to determine the surface temperature.
  • At least two physical parameters are a resistance of the glow plug and / or a power consumed by the glow plug and / or an effective current of the glow plug and / or a voltage of the glow plug.
  • the resistance of the glow plug and / or the power consumed by the glow plug are calculated from the measured current and the measured voltage of the glow plug.
  • the resistance of the glow plug and / or the power consumed by the glow plug are calculated from the measured current and the measured voltage of the glow plug.
  • the determined surface temperature is corrected with a correction factor, which in particular depends on at least one operating parameter of the internal combustion engine.
  • the correction of the surface temperature takes into account the fact that the glow plug is cooled during operation of the internal combustion engine. The discrepancy, which arises because the surface temperature is no longer in a linear relationship to the temperature of the arranged inside the glow plug heater, is compensated by the correction factor.
  • a speed and / or an injection quantity and / or an air mass and / or a charge pressure of the air mass of the internal combustion engine are used as operating parameters.
  • these operating parameters of the internal combustion engine an accurate correction of the surface temperature is made possible, since these reflect the actual ambient conditions of the glow plug in the internal combustion engine. Since these operating parameters are also detected for the evaluation of other situations of the internal combustion engine, no additional hardware expense is necessary to obtain these measurement data.
  • the determined surface temperature of the glow plug is used as the actual temperature for a temperature control of the glow plug.
  • This temperature control is particularly advantageous in transient operation of the glow plug. Due to this highly accurately determined surface temperature, the quality of the control is improved.
  • a development of the invention relates to a device for determining a surface temperature of a glow plug in an internal combustion engine, in which a physical parameter is used to determine the surface temperature.
  • a physical parameter is used to determine the surface temperature.
  • a control unit is connected to a glow plug projecting into a combustion chamber of the internal combustion engine, wherein the control unit controls the at least two physical parameters determined.
  • the very well determined by the control unit surface temperature can be evaluated for temperature control or temperature control of the glow plug.
  • Figure 1 Schematic representation of the arrangement of a glow plug in an internal combustion engine
  • FIG. 2 is a schematic flow diagram for determining the surface temperature of a glow plug
  • FIG. 1 shows such an annealing system 1.
  • a glow plug 2 protrudes into the combustion chamber 3 of the diesel engine 4.
  • the glow plug 2 is on the one hand connected to the Glühzeit Kunststoff 5 and on the other hand leads to a vehicle electrical system voltage 6, which controls the glow plug 2 with a nominal voltage of for example 1 1 volts.
  • the Glühzeit Kunststoff réelle 5 is connected to the engine control unit 7, which in turn leads to the diesel engine 4.
  • the glow plug 2 is preheated in a push phase, which lasts 1 to 2 s, by applying an overvoltage.
  • the electrical energy which is thus supplied to the glow plug 2 is converted into heat by a heater, not shown, of the glow plug 2.
  • the temperature rises steeply at the top of the glow plug 2.
  • the heating power of the heater is adjusted via the electronic Glühzeit Kunststoff 5 to the requirement of the respective diesel engine 4.
  • the fuel-air mixture is conducted past the hot tip of the glow plug 2 and heats up. At the same time, the tip of the glow plug 2 cools down. Associated with intake air heating during the
  • T candle T candle (R candle, candle) + AT (q, ⁇ , rTI
  • the surface temperature T Ke rze of the glow plug 2 in response to, for example, the rotational speed n, the intake air amount m Lu n and the boost pressure T of the air mass is corrected.
  • the accuracy of the surface temperature T Ke rze of the glow plug 2 is improved.
  • the determination of the surface temperature T Ker ze the glow plug 2 is not limited to the combination of resistance R candle of the glow plug 2 and the current recorded by the glow plug 2 power P Ke rze. There are a variety of other combinations, such as resistance R candle of the glow plug 2 and voltage of the glow plug 2 or resistance R candle of the glow plug 2 and power of the glow plug 2 conceivable.
  • the decisive factor is that the physical quantities used to determine the surface temperature T Ke of the glow plug 2 are exclusively due to the respective operating state of the glow plug 2 itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
PCT/EP2012/070416 2011-10-28 2012-10-15 Verfahren und vorrichtung zur bestimmung einer oberflächentemperatur einer glühstiftkerze in einem verbrennungsmotor Ceased WO2013060594A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201280052716.5A CN103890380A (zh) 2011-10-28 2012-10-15 用于确定内燃机中的预热塞的表面温度的方法和装置
EP12780462.3A EP2771567B1 (de) 2011-10-28 2012-10-15 Verfahren und vorrichtung zur bestimmung einer oberflächentemperatur einer glühstiftkerze in einem verbrennungsmotor
JP2014537555A JP6027126B2 (ja) 2011-10-28 2012-10-15 内燃機関のシース形グロープラグの表面温度を測定する方法および装置
US14/354,737 US20150036720A1 (en) 2011-10-28 2012-10-15 Method and device for ascertaining a surface temperature of a sheathed-element glow plug in an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011085435A DE102011085435A1 (de) 2011-10-28 2011-10-28 Verfahren und Vorrichtung zur Bestimmung einer Oberflächentemperatur einer Glühstiftkerze in einem Verbrennungsmotor
DE102011085435.5 2011-10-28

Publications (1)

Publication Number Publication Date
WO2013060594A1 true WO2013060594A1 (de) 2013-05-02

Family

ID=47115853

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/070416 Ceased WO2013060594A1 (de) 2011-10-28 2012-10-15 Verfahren und vorrichtung zur bestimmung einer oberflächentemperatur einer glühstiftkerze in einem verbrennungsmotor

Country Status (6)

Country Link
US (1) US20150036720A1 (https=)
EP (1) EP2771567B1 (https=)
JP (1) JP6027126B2 (https=)
CN (1) CN103890380A (https=)
DE (1) DE102011085435A1 (https=)
WO (1) WO2013060594A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134445A (zh) * 2014-05-26 2015-12-09 曹杨庆 汽油机点火能量温度离体补偿点火电路

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082557B1 (fr) * 2018-06-13 2021-07-23 Renault Sas Procede et systeme d'estimation de la temperature des bougies de prechauffage d'un moteur a combustion interne

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EP0638770A1 (en) * 1993-08-06 1995-02-15 Simmonds Precision Engine Systems, Inc. Temperature detector and control for an igniter
EP1298321A2 (de) * 2001-09-27 2003-04-02 Beru AG Verfahren zum Aufheizen eines elektrischen Heizelementes, insbesondere einer Glühkerze für eine Brennkraftmaschine
DE102009046438A1 (de) * 2009-11-05 2011-05-12 Robert Bosch Gmbh Verfahren zur Regelung oder Steuerung der Temperatur einer Glühstiftkerze
DE102009047650A1 (de) 2009-11-12 2011-05-19 Robert Bosch Gmbh Verfahren und Vorrichtung zur Bestimmung einer Temperatur einer Glühstiftkerze in einem Verbrennungsmotor

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EP0638770A1 (en) * 1993-08-06 1995-02-15 Simmonds Precision Engine Systems, Inc. Temperature detector and control for an igniter
EP1298321A2 (de) * 2001-09-27 2003-04-02 Beru AG Verfahren zum Aufheizen eines elektrischen Heizelementes, insbesondere einer Glühkerze für eine Brennkraftmaschine
DE102009046438A1 (de) * 2009-11-05 2011-05-12 Robert Bosch Gmbh Verfahren zur Regelung oder Steuerung der Temperatur einer Glühstiftkerze
DE102009047650A1 (de) 2009-11-12 2011-05-19 Robert Bosch Gmbh Verfahren und Vorrichtung zur Bestimmung einer Temperatur einer Glühstiftkerze in einem Verbrennungsmotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134445A (zh) * 2014-05-26 2015-12-09 曹杨庆 汽油机点火能量温度离体补偿点火电路

Also Published As

Publication number Publication date
EP2771567B1 (de) 2025-03-19
JP2014534373A (ja) 2014-12-18
US20150036720A1 (en) 2015-02-05
CN103890380A (zh) 2014-06-25
DE102011085435A1 (de) 2013-05-02
JP6027126B2 (ja) 2016-11-16
EP2771567A1 (de) 2014-09-03

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