DE3641854A1 - Method for compensating for the influence of different grades of fuel on the operating performance of a diesel engine - Google Patents

Method for compensating for the influence of different grades of fuel on the operating performance of a diesel engine

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Publication number
DE3641854A1
DE3641854A1 DE19863641854 DE3641854A DE3641854A1 DE 3641854 A1 DE3641854 A1 DE 3641854A1 DE 19863641854 DE19863641854 DE 19863641854 DE 3641854 A DE3641854 A DE 3641854A DE 3641854 A1 DE3641854 A1 DE 3641854A1
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Germany
Prior art keywords
diesel engine
engine
actual
peak pressure
fuel
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
DE19863641854
Other languages
German (de)
Inventor
Joachim Dr Ing Quarg
Wolfgang Dipl Ing Wolf
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.)
Bundesrepublik Deutschland
Bundesministerium der Verteidigung
Original Assignee
Bundesrepublik Deutschland
Bundesministerium der Verteidigung
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
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Application filed by Bundesrepublik Deutschland, Bundesministerium der Verteidigung filed Critical Bundesrepublik Deutschland
Priority to DE19863641854 priority Critical patent/DE3641854A1/en
Publication of DE3641854A1 publication Critical patent/DE3641854A1/en
Ceased 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
    • 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
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels by estimation, i.e. without using direct measurements of a corresponding sensor
    • 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
    • F02D41/1497—With detection of the mechanical response of the engine
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2496—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories the memory being part of a closed loop
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0611—Fuel type, fuel composition or fuel quality
    • F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

A method for automatically compensating for the influence of different grades of fuel on the operating performance of a diesel engine is described, which is characterised in that a characteristic value for the peak pressure occurring in the cylinder in operation is detected by sensors and is compared with a stored reference value, and that the output signal of this reference-actual comparison is electronically processed to obtain a control variable for adjustment of the injection pump and/or of the intake air preheating of the diesel engine with the aim of making the actual value approximate to the reference value. In addition, a control circuit suitable for this purpose is described.

Description

Die Erfindung betrifft ein Verfahren zum selbsttätigen Aus­ gleich des Einflusses unterschiedlicher Kraftstoffqualitäten auf das Betriebsverhalten eines Dieselmotors.The invention relates to a method for automatic off equal to the influence of different fuel qualities on the operating behavior of a diesel engine.

Der Erfindung liegt die Aufgabe zugrunde, ein derartiges Verfahren vorzuschlagen, mit dem es möglich ist, mit für die Praxis ausreichender Sicherheit eine selbsttätige Anpassung des Dieselmotors an die betreffende Kraftstoffqualität zu erreichen.The invention has for its object such To propose a process that is possible for the Practice sufficient security an automatic adjustment of the diesel engine to the relevant fuel quality to reach.

Zur Lösung dieser Aufgabe ist die Erfindung dadurch gekenn­ zeichnet, daß ein Kennwert für den im Betrieb im Zylinder herrschenden Spitzendruck sensorisch erfaßt wird, der mit einem gespeicherten Sollwert verglichen wird, und daß das Ausgangssignal dieses Soll-Ist-Vergleichs elektronisch zu einer Steuergröße für die Einstellung der Einspritzpumpe und/oder der Ansaugluftvorwärmung des Dieselmotors mit dem Ziel verarbeitet wird, den Istwert dem Sollwert anzunähern.To achieve this object, the invention is characterized records that a characteristic value for the in operation in the cylinder prevailing peak pressure is sensed with a stored target value is compared, and that the Output signal of this target-actual comparison electronically a control variable for setting the injection pump and / or the intake air preheating of the diesel engine with the The target is processed to bring the actual value closer to the target value.

Durch die erfindungsgemäße Verfahrensführung wird also der besonders einfach erfaßbare Spitzendruck im Zylinder des Motors für die Istwerterfassung verwendet, der dann die Einstellung der Einspritzpumpe oder auch die Ansaugluftvorwärmung entsprechend beeinflußt derart, daß die Istwerte den Sollwerten optimal angepaßt werden.Through the procedure according to the invention, the peak pressure in the cylinder of the Motors used for the actual value acquisition, which then the Setting the injection pump or the Intake air preheating is influenced accordingly such that the Actual values can be optimally adjusted to the target values.

Zusätzlich kann auch das Einsetzen des Zündvorganges und/oder die Abgastemperatur erfaßt und mit entsprechenden, gespeicherten Sollwerten verglichen werden.In addition, the onset of the ignition process and / or the exhaust gas temperature is recorded and with corresponding, stored setpoints can be compared.

Bei Mehrzylindermotoren hat es sich herausgestellt, daß es ausreicht, den Spitzendruck in nur einem der Zylinder zu er­ fassen, und zwar bei gleichzeitiger Erfassung der Kurbelwel­ lenstellung des Motors. Auch hier führt man dann den er­ wähnten Soll-Ist-Vergleich durch und die daraus abgeleitete Steuergröße beaufschlagt alle Zylinder des Motors. Durch die gleichzeitig erfaßte Kurbelwellenstellung kennt man die momentane Stellung aller Kolben in den Zylindern dieses Motors.With multi-cylinder engines, it has been found that it is sufficient to achieve the peak pressure in only one of the cylinders  grasp, with simultaneous detection of the crankshaft engine position. Here, too, he is led mentioned target-actual comparison and the derived one The control variable acts on all cylinders of the engine. Through the the crankshaft position recorded at the same time is known current position of all pistons in the cylinders of this Motors.

Schutz wird auch beansprucht für eine Vorrichtung zur Durch­ führung dieses Verfahrens, gekennzeichnet durch einen Regel­ kreis mit einem Mikroprozessor mit einem Sollwertspeicher, wenigstens ein Stellglied an der Einspritzpumpe und/oder an der Ansaugluftvorwärmung und durch wenigstens einen Sensor zur Erfassung des Spitzendrucks in wenigstens einem der Zy­ linder zur Istwerterfassung.Protection is also claimed for a through device implementation of this procedure, characterized by a rule circuit with a microprocessor with a setpoint memory, at least one actuator on the injection pump and / or the intake air preheating and by at least one sensor to detect the peak pressure in at least one of the Zy linder for actual value acquisition.

Die Erfindung wird im folgenden anhand eines Ausführungsbei­ spiels näher erläutert, aus dem sich weitere wichtige Merk­ male ergeben. Die Figur zeigt schematisch einen erfindungs­ gemäßen Regelkreis.The invention is illustrated below with the aid of an embodiment game explained in more detail, from which another important note times result. The figure shows schematically a fiction according control loop.

Dieselkraftstoff wird in Richtung des Pfeiles 1 einer Ein­ spritzpumpe 2 zugeführt, die den Dieselkraftstoff in einen Dieselmotor 3 einspritzt. Der Pfeil 4 deutet die vom Motor abgegebene Nutzleistung an.Diesel fuel is supplied in the direction of arrow 1 to an injection pump 2 which injects the diesel fuel into a diesel engine 3 . The arrow 4 indicates the net power output from the engine.

Wenigstens ein Sensor 5 ist vorgesehen, der den Spitzendruck in wenigstens einem der Zylinder des Dieselmotors 3 erfaßt. Es können auch zusätzlich weitere Sensoren, wie einleitend erläutert, vorgesehen sein.At least one sensor 5 is provided, which detects the peak pressure in at least one of the cylinders of the diesel engine 3 . Additional sensors can also be provided, as explained in the introduction.

Die Ausgangssignale des Sensors 5 werden einer Signalaufbe­ reitung 6 zugeleitet, der wiederum einen digitalen Regler 7 beaufschlagt. Dieser besteht aus einem Mikroprozessor 8 und einem Sollwertspeicher 9. Die Ausgangssignale des Reglers 7 werden über Stellglieder 10 an die Einspritzpumpe 2 weiter­ geleitet und/oder über weitere Stellglieder 11 direkt an den Dieselmotor 3.The output signals of the sensor 5 are supplied to a signal preparation 6 , which in turn acts on a digital controller 7 . This consists of a microprocessor 8 and a setpoint memory 9 . The output signals of the controller 7 are passed on to the injection pump 2 via actuators 10 and / or directly to the diesel engine 3 via further actuators 11 .

Als Sensor 5 für die Erfassung des Spitzendrucks werden piezoresistive Aufnehmer bevorzugt, die zudem dem Vorteil haben, daß sie keine weitere Signalaufbereitung benötigen, so daß die Signalaufbereitung 5 gegebenenfalls überflüssig wird. Um Temperaturprobleme zu vermeiden, kann ein derartiger Aufnehmer über ein kurzes, etwa 50 mm langes Rohrstück mit einem kleinen Durchmesser mit dem Brennraum verbunden werden. Das Rohrstück kann sich im Betrieb aber nach einer gewissen Betriebszeit mit Ruß zusetzen.Piezoresistive transducers are preferred as sensors 5 for the detection of the peak pressure, which also have the advantage that they do not require any further signal processing, so that the signal processing 5 may become superfluous. In order to avoid temperature problems, such a sensor can be connected to the combustion chamber via a short, approximately 50 mm long piece of pipe with a small diameter. The pipe section can become clogged with soot after a certain period of operation.

Der Sensor wird daher vorzugsweise außerhalb des Brennraums und von ihm abgekoppelt angebracht. Bei einem mit Zugankern versehenen Motor bietet es sich an, einen dieser Zuganker als Meßelement zu benutzen. Da es ausreichend ist, ein dem Druck proportionales Signal als Regelgröße zu verwenden, ist eine solche Messung im Kraftnebenschluß zulässig. Als Auf­ nehmer könnte daher am Zuganker ein auf diesem aufgeschweißter Dehnungsmeßstreifen angebracht werden, der zur Temperaturkompensation zweckmäßigerweise in Vollbrücken­ schaltung geschaltet ist.The sensor is therefore preferably outside the combustion chamber and attached decoupled from it. One with tie rods equipped motor it is advisable to use one of these tie rods to use as a measuring element. Since it is enough, one Pressure proportional signal to be used as a controlled variable such a measurement in the force shunt is permissible. As on Participants could therefore be on the tie rod on this welded strain gauges are attached, the expediently for temperature compensation in full bridges circuit is switched.

Es kann auch unter dem Kopf des Ankers ein Kraftmeßring (Piezo-Kraftmeßring) angebracht sein.There can also be a load cell under the head of the anchor (Piezo force measuring ring).

Zur Ermittlung der Kurbelwellenstellung kann auf Induktiv­ aufnehmer zurückgegriffen werden, die schon im Ottomotoren­ bau bewährt sind und mit denen ein Zahnkranz abgetastet wird. Dabei hat sich das sogenannte Eingeberverfahren durch­ gesetzt, bei dem der obere Totpunkt durch einen besonders markierten Zahn erkannt wird.To determine the crankshaft position, you can use Inductive sensors that are already used in gasoline engines construction are proven and with which a toothed ring is scanned becomes. The so-called donor procedure has come through  set at which the top dead center by a special marked tooth is recognized.

Eine aus Sicherheitsgründen möglicherweise sinnvolle Abgas­ temperaturüberwachung kann mit handelsüblichen NiCr-Ni-Ther­ moelementen durchgeführt und dem Regler aufgeschaltet werden.A possibly sensible exhaust gas for safety reasons temperature monitoring can be done with standard NiCr-Ni-Ther elements carried out and connected to the controller will.

Grundsätzlich möglich sind auch wasser- oder luftgekühlte Quarzdruckaufnehmer, die allerdings häufiger neu kalibriert werden müssen.In principle, water or air-cooled ones are also possible Quartz pressure transducer, which is however recalibrated more often Need to become.

Es ist somit ersichtlich, daß durch den beschriebenen Regel­ kreis über Eingriffe am Motor oder an seiner Peripherie die Auswirkung von veränderlichen Kraftstoffqualitäten auf das Betriebsverhalten des Motors so ausgeglichen werden, daß sich stets gleiche oder doch annähernd gleiche Motor-Kenn­ werte ergeben.It can thus be seen that the rule described circle on interventions on the motor or on its periphery Impact of changing fuel qualities on the Operating behavior of the engine are balanced so that always the same or approximately the same engine characteristic values result.

Die Auslegung und Grundeinstellung von Fahrzeugdieselmotoren erfolgt üblicherweise für Dieselkraftstoff in Handelsquali­ tät (DIN 51 601). Diese Grundeinstellung wird dann nur noch im Rahmen von Wartungsarbeiten überprüft und gegebenenfalls korrigiert. Bei einer Änderung der Kraftstoffqualität läuft der dieselmotorische Arbeitsprozeß dann nicht mehr unter op­ timalen Bedingungen ab, d. h. die motorischen Kenngrößen wie Drehmoment, spezifischer Verbrauch usw. werden sich in aller Regel verschlechtern. Durch eine Korrektur der alten Ein­ stellwerte lassen sich aber üblicherweise auch wieder opti­ male Bedingungen erzielen.The design and basic setting of vehicle diesel engines is usually done for diesel fuel in commercial quality act (DIN 51 601). This basic setting is then only checked as part of maintenance work and if necessary corrected. If the fuel quality changes the diesel engine work process then no longer under op timing conditions, d. H. the motor parameters like Torque, specific consumption, etc. will all change Rule worsen. By correcting the old one However, control values can usually also be opti again achieve male conditions.

Diese Neueinstellung wird nun im Rahmen der Erfindung durch einen geschlossenen Regelkreis mit digital aufgebautem Reg­ ler übernommen, wie beschrieben, der entsprechende Charak­ teristika des dieselmotorischen Arbeitsprozesses bei der Grundeinstellung des Motors mit regulärem Dieselkraftstoff (DIN 51 601) zunächst als Sollwerte abgespeichert enthält. Dazu ist am Motor die gezeigte Sensorik angebracht. Im weiteren Betrieb des Motors mit Kraftstoff unbekannter Qua­ lität wird dann der Arbeitsprozeß mit den so gewonnenen Sollwerten verglichen. Bei Abweichungen leitet der Regler über die Stellglieder eine Veränderung der Einstellwerte ein. Hieraus folgt eine Korrektur, so daß sich wieder op­ timale Betriebsbedingungen für den Motor ergeben.This new adjustment is now carried out within the scope of the invention a closed control loop with digitally built reg As described, he took over the corresponding character  teristics of the diesel engine work process at Basic setting of the engine with regular diesel fuel (DIN 51 601) initially stored as setpoints. For this purpose, the sensor system shown is attached to the engine. in the continued operation of the engine with fuel of unknown quality The working process with those thus obtained becomes a reality Setpoints compared. In the event of deviations, the controller guides a change in the setting values via the actuators a. A correction follows from this, so that op result in optimal operating conditions for the engine.

Der Regelkreis kann kontinuierlich oder auch nur bei jeder neuerlichen Betankung aktiviert werden: Somit werden selbsttätig Änderungen der Kraftstoffqualität mit ihren Aus­ wirkungen auf den Motor ausgeglichen.The control loop can be continuous or just for each new refueling can be activated: Thus automatically changes the fuel quality with their off effects on the motor balanced.

Claims (4)

1. Verfahren zum selbsttätigen Ausgleich des Einflusses un­ terschiedlicher Kraftstoffqualitäten auf das Betriebsver­ halten eines Dieselmotors, dadurch gekennzeichnet, daß ein Kennwert für den im Betrieb im Zylinder herrschenden Spitzendruck sensorisch erfaßt wird, der mit einem ge­ speicherten Sollwert verglichen wird, und daß das Ausgangssignal dieses Soll-Ist-Vergleichs elektronisch zu einer Steuergröße für die Einstellung der Einspritz­ pumpe und/oder der Ansaugluftvorwärmung des Dieselmotors mit dem Ziel verarbeitet wird, den Istwert dem Sollwert anzunähern.1. A method for automatically compensating for the influence of different fuel qualities on the operating behavior of a diesel engine, characterized in that a characteristic value for the peak pressure prevailing in the cylinder during operation is sensed, which is compared with a stored target value, and that the output signal of this Target-actual comparison is electronically processed to a control variable for the setting of the injection pump and / or the intake air preheating of the diesel engine with the aim of bringing the actual value closer to the target value. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß auch das Einsetzen des Zündvorganges und/oder die Abgas­ temperatur erfaßt und mit entsprechenden, gespeicherten Sollwerten verglichen werden. 2. The method according to claim 1, characterized in that also the onset of the ignition process and / or the exhaust gas temperature recorded and with corresponding, stored Setpoints are compared.   3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei einem Mehrzylindermotor der Spitzendruck in nur einem der Zylinder erfaßt wird bei gleichzeitiger Erfas­ sung der Kurbelwellenstellung und daß nach dem Soll-Ist- Vergleich die daraus abgeleitete Steuergröße alle Zylinder des Motors beaufschlagt.3. The method according to claim 1 or 2, characterized in that with a multi-cylinder engine the peak pressure in only one of the cylinders is detected with simultaneous detection solution of the crankshaft position and that according to the target-actual Compare the tax base derived from all Cylinder of the engine. 4. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, gekennzeichnet durch einen Regel­ kreis mit einem Mikroprozessor (8) mit einem Sollwert­ speicher (9), wenigstens ein Stellglied (10, 11) an der Einspritzpumpe (2) und/oder an der Ansaugluftvorwärmung und durch wenigstens einen Sensor (5) zur Erfassung des Spitzendrucks in wenigstens einem der Zylinder zur Ist­ werterfassung.4. Device for performing the method according to one of claims 1 to 3, characterized by a control circuit with a microprocessor ( 8 ) with a setpoint memory ( 9 ), at least one actuator ( 10 , 11 ) on the injection pump ( 2 ) and / or on the intake air preheating and by at least one sensor ( 5 ) for detecting the peak pressure in at least one of the cylinders for actual value detection.
DE19863641854 1986-12-08 1986-12-08 Method for compensating for the influence of different grades of fuel on the operating performance of a diesel engine Ceased DE3641854A1 (en)

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DE19863641854 DE3641854A1 (en) 1986-12-08 1986-12-08 Method for compensating for the influence of different grades of fuel on the operating performance of a diesel engine

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DE19863641854 DE3641854A1 (en) 1986-12-08 1986-12-08 Method for compensating for the influence of different grades of fuel on the operating performance of a diesel engine

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DE19510592A1 (en) * 1994-03-23 1995-09-28 Unisia Jecs Corp System for measuring e.g. fuel volatility in IC engine
WO2001059281A1 (en) * 2000-02-12 2001-08-16 Mtu Friedrichshafen Gmbh System for regulating an internal combustion engine
EP1164271A3 (en) * 2000-05-16 2003-10-01 Nissan Motor Co., Ltd. Feedback control of two-stage injection for an auto-ignition gasoline engine
WO2004016924A1 (en) * 2002-07-24 2004-02-26 Siemens Aktiengesellschaft Method and device for controlling the combustion process of an hcci internal combustion engine
EP1854982A1 (en) * 2006-05-08 2007-11-14 MAGNETI MARELLI POWERTRAIN S.p.A. Method for recognising the fuel type in a diesel engine
WO2011041723A1 (en) * 2009-10-01 2011-04-07 Sturman Industries, Inc. Control method and apparatus for multi-fuel compression ignition engines
DE102009052224A1 (en) * 2009-11-06 2011-05-12 Volkswagen Ag Method for operating an internal combustion engine with different types of fuel or fuel qualities
DE102005001882B4 (en) * 2005-01-14 2017-07-20 Volkswagen Ag Method for operating an internal combustion engine

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US4466408A (en) * 1983-03-10 1984-08-21 The United States Of America As Represented By The Secretary Of The Army Apparatus for closed-loop combustion control in internal combustion engines
EP0142490A2 (en) * 1983-10-17 1985-05-22 Jenbacher Werke AG Method of operating a gas engine

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DE19510592A1 (en) * 1994-03-23 1995-09-28 Unisia Jecs Corp System for measuring e.g. fuel volatility in IC engine
DE19510592C2 (en) * 1994-03-23 1998-07-09 Unisia Jecs Corp Fuel characteristic detection system for an internal combustion engine
WO2001059281A1 (en) * 2000-02-12 2001-08-16 Mtu Friedrichshafen Gmbh System for regulating an internal combustion engine
US6837214B2 (en) 2000-02-12 2005-01-04 Mtu Friedrichshafen Gmbh System for regulating an internal combustion engine
EP1164271A3 (en) * 2000-05-16 2003-10-01 Nissan Motor Co., Ltd. Feedback control of two-stage injection for an auto-ignition gasoline engine
US6659068B2 (en) 2000-05-16 2003-12-09 Nissan Motor Co., Ltd. Feedback control for auto-ignition two-stage combustion of gasoline in engine cylinder
WO2004016924A1 (en) * 2002-07-24 2004-02-26 Siemens Aktiengesellschaft Method and device for controlling the combustion process of an hcci internal combustion engine
DE102005001882B4 (en) * 2005-01-14 2017-07-20 Volkswagen Ag Method for operating an internal combustion engine
EP1854982A1 (en) * 2006-05-08 2007-11-14 MAGNETI MARELLI POWERTRAIN S.p.A. Method for recognising the fuel type in a diesel engine
US7533660B2 (en) 2006-05-08 2009-05-19 Magneti Marelli Powertrain S.P.A. Method for recognizing a fuel type in a diesel engine
WO2011041723A1 (en) * 2009-10-01 2011-04-07 Sturman Industries, Inc. Control method and apparatus for multi-fuel compression ignition engines
DE102009052224A1 (en) * 2009-11-06 2011-05-12 Volkswagen Ag Method for operating an internal combustion engine with different types of fuel or fuel qualities

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