EP1420207A2 - Verfahren zum Ansteuern eines Glühzündorgans eines Heizgerätes - Google Patents
Verfahren zum Ansteuern eines Glühzündorgans eines Heizgerätes Download PDFInfo
- Publication number
- EP1420207A2 EP1420207A2 EP03026195A EP03026195A EP1420207A2 EP 1420207 A2 EP1420207 A2 EP 1420207A2 EP 03026195 A EP03026195 A EP 03026195A EP 03026195 A EP03026195 A EP 03026195A EP 1420207 A2 EP1420207 A2 EP 1420207A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- preheating
- voltage
- basic
- glow
- deviation
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012937 correction Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Images
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
- F02P19/021—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
- F02P19/022—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 using intermittent current supply
-
- 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
- F23Q7/06—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners
-
- 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
- F23Q7/22—Details
- F23Q7/24—Safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/38—Electrical resistance ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/14—Vehicle heating, the heat being derived otherwise than from the propulsion plant
Definitions
- the present invention relates to a method for driving a Glow ignition element of a heater, in particular a vehicle heater.
- DE 32 48 412 A1 describes a method for controlling a glow plug a vehicle heater known in which method a Glow plug preheat duration depending on one by one Vehicle battery provided voltage is set. The higher the Voltage is the shorter the glow plug is preheated, and vice versa. This is to ensure that regardless of which one Vehicle battery provided voltage to carry out required temperature of the glow plug reached during the ignition process can be.
- DE 44 46 113 A1 discloses a method for controlling a Glow plug, in which a glow plug to achieve a predetermined Temperature controlled with a certain duty cycle will, d. H. the available voltage according to the duty cycle pulsed is applied to the glow plug.
- the duty cycle is selected depending on the existing supply voltage, so that with decreasing supply voltage the duty cycle increases up to a value of 100%.
- the basic preheat period or / and the basic preheat duty cycle based on at least one Operating parameters are specified, this at least one Operating parameters can reflect the ambient temperature. Consequently it becomes possible, for example, when the outside temperature is very low longer basic preheating duration or a higher basic preheating duty cycle to be specified than at higher ambient temperatures.
- step b) if the deviation determined in step b) is a predetermined one Limit value is exceeded, the application of a preheat voltage to the Glow igniter is prevented.
- the corrective actions according to the invention then have to be carried out when a certain voltage level can no longer be achieved, for example take place that in step c) the corrected preheating time by determining a correction term based on the deviation determined in step b) and adding the correction term to the basic preheating period or / and that in step c) the corrected basic preheating duty cycle by determining a correction term based on that determined in step b) Deviation and addition of the correction term to the basic preheating duty cycle is determined.
- Fig. 1 is a heating system, such as as a parking heater or Auxiliary heater can be used in a vehicle, shown very schematically.
- This heating system 10 includes one generally designated 12 Heater.
- combustion air is evaporated or atomized fuel mixed and burned.
- a glow plug in a burner area 14 provided. This stands, just like other system areas to be controlled of the heater 12, under the control of a control device 16.
- the control device 16 is used to apply an excitation voltage fed to the glow plug 14 from an electrical system 18.
- the control device 16 Based on that taken from the on-board voltage network 18 or there tapped on-board voltage sets when by excitation of the glow plug 14 the heater 12 or the combustion can be started therein should, the control device 16 a voltage U with a duty cycle V to the glow plug 14. In a pre-glow phase, in which the glow plug 14 as quickly as possible to a desired one Temperature should be brought, a slightly increased preheating voltage which, at the end of this preheating phase, as described below, then something is lowered.
- control device 16 Based on the on-board voltage, if, for example, a command to start preheating is issued at time t 0 , control device 16 generates a preheating voltage that is applied to glow plug 14.
- a value U s is selected as the pre-glow voltage setpoint, which is adapted to the special design of a respective glow plug 14 and ensures that it cannot be overloaded, at least in normal operating mode.
- a basic preheating period is also specified, during which this preheating voltage with the setpoint U s is applied to the glow plug.
- this basic preheating period is represented by the time interval between the time t 0 and t g .
- a basic preheating duty cycle is selected in association with the target value U S , so that this preheating voltage U with the value U S and the basic preheating duty cycle is applied to the glow plug 14 during the basic preheating period. After the basic preheating period has elapsed, the voltage to be applied to the glow plug 14 can be reduced to a reduced ignition value U z .
- the control device 16 tries to apply a sufficiently high voltage to the glow plug 14, but the actual preheating voltage actually applied will be somewhat lower than the setpoint value U S. For example, it is initially assumed that the preheat voltage actually reached is at a value U 1 which is below the target value U S by a difference ⁇ U 1 .
- the glow plug 14 is preheated at such a preheating voltage U 1 with otherwise unchanged control parameters, there is a risk that it will not be preheated sufficiently.
- the target value U S of the preheating voltage cannot be reached, at least one of the parameters preheating duration and preheating duty cycle parameters is corrected according to the invention.
- FIG. 3 shows a characteristic diagram with a characteristic curve K, where respective voltage difference values ⁇ U are assigned time correction terms ⁇ t.
- the correction of the preheating duration or the preheating duty cycle can However, this can also be done by calculating a correction term in which is a correction factor that specifies how many seconds per volt voltage deviation the preheating period is to be extended with which determined voltage deviation is multiplied. The so obtained The correction term can then be added to the basic preheating time. The same naturally also applies to the duty cycle.
- the ambient temperature or the temperature in the area of the heater 12 can also be such a correction factor, which is in the representation 3 is also essentially represented by the Slope of the characteristic curve K, depending on such external circumstances can be selected so that, for example, even if higher Ambient temperatures or higher temperatures in the area of the heater 12 are present, less corrections if the target voltage is undershot be made as in a case in which comparative low temperatures prevail.
- the procedure according to the invention can be provided that when the difference between the Target voltage and the actually applied preheating voltage one exceeds a certain limit, i.e. if the actual voltage is one no longer exceeds a certain voltage limit, the excitation of the Glow plug 14 is completely set and possibly one appropriate error warning is generated because then it is not ensured can be that the heater 12 in a proper manner can be ignited.
- Correction terms and correction factors ensure that too under the worst circumstances, i.e. for example at very low Ambient temperatures or very cold glow plug 14, at the beginning the pre-glow phase within the glow ignition phase predetermined time the required temperature can be reached.
- the present invention provides corrections only if the target voltage is not in the preheating phase can be ensured that the glow plug is overloaded can be prevented.
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)
- Exhaust Gas After Treatment (AREA)
- Control Of Resistance Heating (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
- Fig. 1
- schematisch ein Heizsystem, bei welchem die erfindungsgemäße Vorgehensweise vorgenommen werden kann;
- Fig 2
- die an ein Glühzündorgan des Systems der Fig. 1 angelegte Vorglühspannung in Abhängigkeit von der Zeit;
- Fig. 3
- ein zweidimensionales Kennfeld, durch welches ein Zusammenhang zwischen Spannungsabweichungen und Korrekturtermen hergestellt wird.
Claims (5)
- Verfahren zum Ansteuern eines Glühzündorgans (14) eines Heizgerätes (12), insbesondere eines Fahrzeugheizgerätes, umfassend die Schritte:a) beruhend auf einer Bordspannung Erzeugen einer an das Glühzündorgan für eine Grund-Vorglühdauer mit einem Grund-Vorglühtastverhältnis anzulegenden Soll-Vorglühspannung (US),b) dann, wenn die Soll-Vorglühspannung (US) nicht erreichbar ist, Ermitteln einer Abweichung (ΔU1, ΔU2) zwischen der Soll-Vorglühspannung (US) und der an das Glühzündorgan (14) angelegten Ist-Vorglühspannung (U1, U2),c) beruhend auf der im Schritt b) ermittelten Abweichung (ΔU1, ΔU2), Ermitteln einer bezüglich der Grund-Vorglühdauer erhöhten korrigierten Vorglühdauer oder/und Ermitteln eines bezüglich des Grund-Vorglühtastverhältnisses erhöhten korrigierten Vorglühtastverhältnisses.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass die Grund-Vorglühdauer oder/und das Grund-Vorglühtastverhältnis beruhend auf wenigstens einem Betriebsparameter vorgegeben werden. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet, dass der wenigstens eine Betriebsparameter eine Umgebungstemperatur wiedergibt. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass dann, wenn die im Schritt b) ermittelte Abweichung einen vorbestimmten Grenzwert überschreitet, das Anlegen einer Vorglühspannung an das Glühzündorgan unterbunden wird. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass im Schritt c) die korrigierte Vorglühdauer durch Bestimmen eines Korrekturterms (Δt1, Δt2) beruhend auf der im Schritt b) ermittelten Abweichung (ΔU1, ΔU2) und Addieren des Korrekturterms zur Grund-Vorglühdauer ermittelt wird oder/und dass im Schritt c) das korrigierte Grund-Vorglühtastverhältnis durch Ermitteln eines Korrekturterms beruhend auf der im Schritt b) ermittelten Abweichung (ΔU1, ΔU2) und Addieren des Korrekturterms zum Grund-Vorglühtastverhältnis ermittelt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10253659 | 2002-11-18 | ||
| DE10253659A DE10253659C1 (de) | 2002-11-18 | 2002-11-18 | Verfahren zum Ansteuern eines Glühzündorgans eines Heizgerätes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1420207A2 true EP1420207A2 (de) | 2004-05-19 |
| EP1420207A3 EP1420207A3 (de) | 2005-04-06 |
| EP1420207B1 EP1420207B1 (de) | 2008-01-23 |
Family
ID=29557910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03026195A Expired - Lifetime EP1420207B1 (de) | 2002-11-18 | 2003-11-17 | Verfahren zum Ansteuern eines Glühzündorgans eines Heizgerätes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1420207B1 (de) |
| JP (1) | JP2004170063A (de) |
| DE (2) | DE10253659C1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007031264A1 (de) * | 2007-07-05 | 2009-01-08 | J. Eberspächer GmbH & Co. KG | Verfahren zum Betreiben eines brennstoffbetriebenen Heizgeräts, insbesondere Fahrzeugheizgerät |
| DE102016104142B4 (de) | 2016-03-08 | 2024-10-17 | Eberspächer Climate Control Systems GmbH | Verfahren zum Betreiben eines brennstoffbetriebenen Fahrzeugheizgerätes |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025772A1 (de) * | 2004-05-26 | 2005-12-22 | J. Eberspächer GmbH & Co. KG | Verfahren zum Betreiben eines Glühzündelements einer Fahrzeugheizeinrichtung |
| DE102004028304A1 (de) * | 2004-06-11 | 2006-01-05 | J. Eberspächer GmbH & Co. KG | Verfahren zum Betreiben eines brennstoffbetriebenen Fahrzeugheizgerätes |
| DE102004062831A1 (de) * | 2004-12-27 | 2006-07-13 | J. Eberspächer GmbH & Co. KG | Verfahren zum Starten eines Fahrzeugheizgerätes und Fahrzeugheizgerät |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248412A1 (de) | 1982-12-28 | 1984-07-05 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Mit fliessfaehigem brennstoff gespeistes heizgeraet |
| DE4446113A1 (de) | 1994-12-22 | 1996-06-27 | Eberspaecher J | Glühstift-Steuerschaltung |
| DE19936729C1 (de) | 1999-08-06 | 2000-11-16 | Webasto Thermosysteme Gmbh | Verfahren zum Ansteuern eines Glühstifts für das Zünden eines Fahrzeugheizgeräts |
-
2002
- 2002-11-18 DE DE10253659A patent/DE10253659C1/de not_active Revoked
-
2003
- 2003-11-13 JP JP2003383387A patent/JP2004170063A/ja active Pending
- 2003-11-17 DE DE50309069T patent/DE50309069D1/de not_active Expired - Lifetime
- 2003-11-17 EP EP03026195A patent/EP1420207B1/de not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248412A1 (de) | 1982-12-28 | 1984-07-05 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Mit fliessfaehigem brennstoff gespeistes heizgeraet |
| DE4446113A1 (de) | 1994-12-22 | 1996-06-27 | Eberspaecher J | Glühstift-Steuerschaltung |
| DE19936729C1 (de) | 1999-08-06 | 2000-11-16 | Webasto Thermosysteme Gmbh | Verfahren zum Ansteuern eines Glühstifts für das Zünden eines Fahrzeugheizgeräts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007031264A1 (de) * | 2007-07-05 | 2009-01-08 | J. Eberspächer GmbH & Co. KG | Verfahren zum Betreiben eines brennstoffbetriebenen Heizgeräts, insbesondere Fahrzeugheizgerät |
| DE102016104142B4 (de) | 2016-03-08 | 2024-10-17 | Eberspächer Climate Control Systems GmbH | Verfahren zum Betreiben eines brennstoffbetriebenen Fahrzeugheizgerätes |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50309069D1 (de) | 2008-03-13 |
| JP2004170063A (ja) | 2004-06-17 |
| DE10253659C1 (de) | 2003-12-18 |
| EP1420207A3 (de) | 2005-04-06 |
| EP1420207B1 (de) | 2008-01-23 |
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