DE202004012841U1 - Adaptive power control of a diesel combustion engine based on use of the glow plug as a combustion chamber temperature sensor, whereby the glow plug resistance is used directly or indirectly as a temperature signal - Google Patents
Adaptive power control of a diesel combustion engine based on use of the glow plug as a combustion chamber temperature sensor, whereby the glow plug resistance is used directly or indirectly as a temperature signal Download PDFInfo
- Publication number
- DE202004012841U1 DE202004012841U1 DE200420012841 DE202004012841U DE202004012841U1 DE 202004012841 U1 DE202004012841 U1 DE 202004012841U1 DE 200420012841 DE200420012841 DE 200420012841 DE 202004012841 U DE202004012841 U DE 202004012841U DE 202004012841 U1 DE202004012841 U1 DE 202004012841U1
- Authority
- DE
- Germany
- Prior art keywords
- heating element
- combustion engine
- electrical resistance
- internal combustion
- combustion chamber
- 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.)
- Expired - Lifetime
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Classifications
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- 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
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- 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
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
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- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Während des Betriebs eines kompressionsgezündeten Verbrennungsmotors auf hohen Höhen kann eine niedrigere Luftdichte ein Luft-Brennstoff-Verhältnis zur Folge haben, welches fetter als erwünscht ist, was wiederum eine Schäden verursachende hohe Abgastemperatur zur Folge haben kann. Ein solcher Schaden kann verbrannte Ventile, Versagensfälle der Kopfdichtung, eine Verzerrung des Motorblockes, gerissene Sammelleitungen und Zylinderköpfe, Verbrennungen und Freßvorgänge der Kolben, Kohlenstoffablagerungen hinter den Kolbenringen und auf den Einspritzvorrichtungsspitzen, Versagensfälle von Kolbenringen mit daraus resultierendem hohen Ölverbrauch und Vorbeiblasvorgängen, eine Lösung von Schmieröl, Risse in der Turboladereinheit und die Ausdehnung von Aluminiumkolben aufweisen, was Aluminiumablagerungen an den Zylinderwänden und ein Fressen des Kolbens zur Folge haben kann. Um das Risiko einer Beschädigung aufgrund von höheren Abgastemperaturen zu vermeiden, können Motormanagementsysteme programmiert werden, um den Motor herunterzuregeln (d.h. eine niedrigere maximale Leistungsausgabe vorzusehen). Beispielsweise haben frühere Veröffentlichungen eine Abriegelungsstrategie bzw. Herunterregelungsstrategie für einen Motor in Verbindung mit einem versperrten Luftfilter beschrieben, was zu Schäden verursachenden hohen Abgastemperaturen in der gleichen Weise führen kann, wie oben für einen Betrieb auf großer Höhe beschrieben worden ist. Bekannte Systeme tendieren dazu, basierend auf verschiedenen Eingangsparametern zu funktionieren, die einen Atmosphärendruck (eine Anzeige der Höhe) und eine Einlaßlufttemperatur aufweisen. Weiterhin werden Brennstoffkarten zum Abriegeln für volle Last/Nennlast empirisch in bekannten Systemen verbreitet, um die erwünschte Herunterregelungsbrennstofflieferung zu liefern, und eine solche empirische Verbreitung erfordert beträchtliche vorherige Arbeit, um die Herunterregelungsstrategien einzurichten.During the Operating a compression-ignited Internal combustion engine at high altitudes can a lower air density an air-fuel ratio result, which is fatter than desired, which in turn a damage causing high exhaust gas temperature can result. Such a Damage can burned valves, head gasket failure cases, one Distortion of the engine block, cracked manifolds and cylinder heads, burns and feeding operations of Piston, carbon deposits behind the piston rings and on the injector tips, failure cases of piston rings with it resulting high oil consumption and blowby operations, a solution of lubricating oil, Cracks in the turbocharger unit and the expansion of aluminum pistons What aluminum deposits on the cylinder walls and a seizure of the piston can result. To the risk of a damage due to higher To avoid exhaust gas temperatures, engine management systems be programmed to downshift the engine (i.e., a lower one) to provide maximum power output). For example, have previous releases a shutdown strategy for a Motor in conjunction with a locked air filter described what to damage causing high exhaust gas temperatures in the same way, as above for a big business Height has been described is. Known systems tend to be based on different ones Input parameters to work, the one atmospheric pressure (an indication of height) and an intake air temperature exhibit. Furthermore, fuel cards are going to be blocked for full Load / nominal load empirically disseminated in known systems to the desirable To deliver down-regulation fuel delivery, and such empirical dissemination requires considerable prior work, to set down control strategies.
Um ein optimales Herunterregeln des Motors vorzusehen, kann man es dem Motor gestatten, adaptiv mit einer maximalen Ausgangsgröße entsprechend der erwünschten maximalen Auslaßtemperatur zu arbeiten. Diese Erfindung verwendet eine existierende Motorkomponente, um ein Signal zu liefern, welches die Temperatur im Zylinder oder die Abgastemperatur darstellt, nämlich die Vorheizung der Glühkerze, die gewöhnlicherweise in Dieselmotoren oder anderen verdichtungsgezündeten Motoren eingebaut ist. Bei vielen Motoranwendungen wird die Glühkerze nur während des Voranlaufs, des Anlaufs des Motors und für eine kurze Periode nach dem Start mit Energie versorgt. Es ist bekannt, daß eine Beziehung zwischen der Temperatur der Glühkerze und dem elektrischen Widerstand existiert, der an der Glühkerze zu messen ist. Beispielsweise verwendet DE4014966 die Glühkerze als eine Anzeige der Motorbelastung. Gemäß dieser Erfindung wird der gemessene Widerstand an der Glühkerze verwendet, um ein Signal zu erhalten, welches die Glühkerzentemperatur darstellt. Während normaler Betriebsbedingungen (während die Glühkerze nicht erregt ist) kann die Glühkerzentemperatur als repräsentativ für die Temperatur im Zylinder oder des Abgases angesehen werden. Somit sieht die Anwendung der Glühkerze einen kostengünstigen Weg vor, um die Temperatur im Zylinder oder des Abgases zu bestimmen, und zwar durch Verwendung einer zuvor existierenden Motorkomponente, die in erster Linie für andere Zwecke vorhanden ist, jedoch effektiv während längerer Perioden des Motorbetriebs ohne Verwendung ist. Das System kann die Stärke der Brennstoffversorgung des Motors oder andere Betriebsparameter basierend auf der Rückkoppelung steuern, beispielsweise in einer Steuerungsrückkoppelung (closed loop), wobei es die Abgastemperatur berücksichtigt, wie sie durch Anwendung der Glühkerze bestimmt wird, wie oben beschrieben. Diese Steuerung des Brennstoffniveaus kann in Verbindung mit einem elektronischen Steuermodul erreicht werden, welches das Glühkerzensignal aufnimmt, oder kann in anderer Weise als Auslöser dienen, um das Brennstoffversorgungsniveau des Motors zu begrenzen. Gemäß dieser Erfindung wird keine Bestimmung der Höhe oder des Meeresspiegels erforderlich, und der Motor kann mit der maximalen Leistung arbeiten, die durch die voreingestellte Abgastemperaturgrenze gestattet wird.Around To provide an optimal down regulation of the engine, you can do it allow the engine to adaptively with a maximum output corresponding the desired maximum outlet temperature to work. This invention uses an existing engine component, to provide a signal indicating the temperature in the cylinder or represents the exhaust gas temperature, namely the preheating of the glow plug, usually installed in diesel engines or other compression-ignition engines. In many engine applications, the glow plug is only during the Pre-start, the start of the engine and for a short period after the start energized. It is known that a relationship between the Temperature of the glow plug and The electrical resistance exists at the glow plug measure is. For example, DE4014966 uses the glow plug as an indication of the engine load. According to this invention, the measured resistance at the glow plug used to get a signal indicating the glow plug temperature represents. While normal operating conditions (during the glow plug is not energized) can the glow plug temperature as representative for the Temperature in the cylinder or the exhaust gas are considered. Consequently sees the application of the glow plug a cost-effective Way to determine the temperature in the cylinder or the exhaust gas, and although by using a pre-existing engine component, in the first place for other purposes, but effectively during longer periods of engine operation without use. The system can increase the strength of the fuel supply of the engine or other operating parameters based on the feedback control, for example in a closed-loop control, taking into account the exhaust gas temperature, like by applying the glow plug is determined as described above. This control of the fuel level can be achieved in conjunction with an electronic control module which is the glow plug signal or may otherwise serve as a trigger to the fuel supply level to limit the engine. According to this Invention will not determine height or sea level required, and the engine can work with the maximum power, which is allowed by the preset exhaust gas temperature limit.
Keine vor dem Einbau vorhandene empirische Verbreitung von Brennstoffkarten ist erforderlich, jedoch kann das elektronische Steuermodul auch unterschiedliche Brennstoffkarten auswählen, falls dies erwünscht ist. Dieser Ansatz sieht eine automatische Abriegelung des Motors im Falle von irgend einem Zustand vor, der eine Steigerung der Abgastemperatur erzeugt, wie beispielsweise ein verstopfter Luftfilter oder irgend ein anderer abnormer Zustand (beispielsweise ein hoher Rückdruck), der bewirkt, daß die Abgastemperatur über einer festgelegten Grenze ist.None pre-installation empirical distribution of fuel cards is required, however, the electronic control module can also select different fuel cards if desired. This approach provides for automatic engine lockout Trap of any condition prior to an increase in exhaust gas temperature generated, such as a clogged air filter or any another abnormal condition (for example, a high back pressure), which causes the Exhaust gas temperature over a fixed limit.
Die offenbarte Lösung sieht eine optimierte Herunterregelung des Motors vor, um eine maximale Leistung zu gestatten, ohne die vorbestimmten Abgastemperaturgrenzen zu überschreiten. Durch Verwendung einer existierenden Komponente, um die Temperatursensorfunktion vorzusehen, wird die Notwendigkeit von zusätzlichen Komponenten vermieden. Darüber hinaus ist bekannt, daß Glühkerzen robust sind und die harte Umgebung der Brennkammer überleben können. Ein empirischer Test und eine Verbreitung von Brennstoffkarten zum Herunterregeln werden auch vermieden.The revealed solution provides optimized downshifting of the engine for maximum performance without exceeding the predetermined exhaust gas temperature limits. By using an existing component, the temperature sensor function the need for additional components is avoided. About that It is also known that glow plugs are robust and survive the harsh environment of the combustion chamber can. An empirical test and dissemination of fuel maps for Down rules are also avoided.
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420012841 DE202004012841U1 (en) | 2004-08-16 | 2004-08-16 | Adaptive power control of a diesel combustion engine based on use of the glow plug as a combustion chamber temperature sensor, whereby the glow plug resistance is used directly or indirectly as a temperature signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420012841 DE202004012841U1 (en) | 2004-08-16 | 2004-08-16 | Adaptive power control of a diesel combustion engine based on use of the glow plug as a combustion chamber temperature sensor, whereby the glow plug resistance is used directly or indirectly as a temperature signal |
Publications (1)
Publication Number | Publication Date |
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DE202004012841U1 true DE202004012841U1 (en) | 2005-02-03 |
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DE200420012841 Expired - Lifetime DE202004012841U1 (en) | 2004-08-16 | 2004-08-16 | Adaptive power control of a diesel combustion engine based on use of the glow plug as a combustion chamber temperature sensor, whereby the glow plug resistance is used directly or indirectly as a temperature signal |
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DE (1) | DE202004012841U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009105A1 (en) * | 2007-02-24 | 2008-08-28 | Beru Ag | Diesel engine controlling method for motor vehicle, involves evaluating electrical resistance process for determination of combustion parameter, which signifies cyclic fuel combustion taking place in combustion chamber of engine |
-
2004
- 2004-08-16 DE DE200420012841 patent/DE202004012841U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009105A1 (en) * | 2007-02-24 | 2008-08-28 | Beru Ag | Diesel engine controlling method for motor vehicle, involves evaluating electrical resistance process for determination of combustion parameter, which signifies cyclic fuel combustion taking place in combustion chamber of engine |
DE102007009105B4 (en) * | 2007-02-24 | 2009-04-09 | Beru Ag | Method for controlling the engine of a diesel engine and engine control system |
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Legal Events
Date | Code | Title | Description |
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R207 | Utility model specification |
Effective date: 20050310 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20070822 |
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R151 | Term of protection extended to 8 years |
Effective date: 20100908 |
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R152 | Term of protection extended to 10 years | ||
R152 | Term of protection extended to 10 years |
Effective date: 20120810 |
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R071 | Expiry of right | ||
R071 | Expiry of right |