EP0317922A1 - Compression ignition for a combustion engine - Google Patents

Compression ignition for a combustion engine Download PDF

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Publication number
EP0317922A1
EP0317922A1 EP88119266A EP88119266A EP0317922A1 EP 0317922 A1 EP0317922 A1 EP 0317922A1 EP 88119266 A EP88119266 A EP 88119266A EP 88119266 A EP88119266 A EP 88119266A EP 0317922 A1 EP0317922 A1 EP 0317922A1
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EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
glow plug
self
actuator
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Granted
Application number
EP88119266A
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German (de)
French (fr)
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EP0317922B1 (en
Inventor
Karl Peter Dipl.-Phys. Schäfer
Bernhardt Dipl.-Ing. Wendt
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robbe GmbH
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robbe GmbH
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Priority to AT8888119266T priority Critical patent/ATE105375T1/en
Publication of EP0317922A1 publication Critical patent/EP0317922A1/en
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Publication of EP0317922B1 publication Critical patent/EP0317922B1/en
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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
    • F02P19/028—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
    • 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
    • F02D35/026—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 using an estimation
    • 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
    • F02B75/00—Other engines
    • F02B75/34—Ultra-small engines, e.g. for driving models
    • 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
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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

Definitions

  • the invention relates to a self-igniting internal combustion engine with a glow plug.
  • Such internal combustion engines are generally known under the name “diesel engines” and are used in many different ways.
  • Optimizing the way an internal combustion engine works has recently become increasingly important. Effective control of an internal combustion engine can ensure, for example, optimum efficiency, the lowest possible consumption, the most harmless exhaust gas composition, low noise and the longest possible service life.
  • numerous sensors are installed in the internal combustion engine, which supply evaluation electronics with information about the operating behavior of the internal combustion engine. Unfavorable operating values are then either displayed or automatically changed to favorable operating values by actuating actuators. Such facilities are referred to as engine management.
  • a disadvantage of the known internal combustion engines is that the arrangement of sensors causes relatively high costs.
  • the temperature inside an internal combustion engine is particularly instructive. Especially there, however, temperatures can only be measured with great effort using the previously known means.
  • the object of the invention is to design an internal combustion engine with a glow plug in such a way that optimal control and regulation can be carried out with as little effort as possible
  • an electrical resistance ... measuring device for determining the electrical resistance of the glow plug.
  • the temperature of the glow plug can be determined with extremely little effort.
  • the glow plug which is usually required in auto-ignition internal combustion engines to start the internal combustion engine, is used as a temperature sensor, since it changes its electrical resistance as a function of the temperature in the combustion chamber. This allows the temperature in the combustion chamber to be determined without the need for an additional temperature sensor. Thanks to the invention, practically all temperature-dependent effects within the internal combustion engine can be observed and measured.
  • the average temperature of each cylinder can be determined via the resistance of the respective glow plug. This makes it easy to determine combustion irregularities in individual cylinders.
  • the ignition timing is also easy to determine because the ignition causes the temperature of the glow plug to rise due to the burning mixture. A mixture that is too rich or too lean can also be determined via the temperature, because this more or less cools the glow plug when it flows into the combustion chamber, depending on the composition.
  • the resistance measuring device provides information, for example, as to whether the temperature level in the combustion chamber is too high or too low. A much more extensive information about the mode of operation of the internal combustion engine is obtained, however, if, according to an advantageous embodiment of the invention, the resistance measuring device is connected to evaluation electronics for determining operating data of the internal combustion engine on the basis of the temperature which fluctuates periodically with the ignition frequency and thus the correspondingly fluctuating resistance of the glow plug.
  • the resistance measuring device can replace a speed sensor if the evaluation electronics are designed to determine the speed of the internal combustion engine due to the periodic temperature fluctuations of the glow plug.
  • the resistance measuring device could be a transducer for various display instruments, for example a thermometer or a speed display. However, it is also possible to use the resistance measuring device as a measuring value transmitter for an automatic control circuit by the evaluation electronics having at least one actuator for controlling or regulating the internal combustion engine.
  • the actuator can control very different influencing variables, for example the coolant supply.
  • the actuator controls a speed controller.
  • a particularly advantageous engine management system results if the actuator is configured to adjust the mixture of the internal combustion engine.
  • the ignition timing of a self-igniting internal combustion engine can be brought forward if the actuator is designed for the speed-dependent supply of heating current to the glow plug. In such an internal combustion engine, ignition is initiated by periodically heating up the glow plug. This results in a further possibility of influencing the work of the internal combustion engine.
  • the invention allows numerous embodiments. To further clarify its basic principle, one of them is shown very schematically in the drawing and is described below.
  • the drawing shows in section the upper area of a four-stroke, self-igniting internal combustion engine, such as is used for model aircraft.
  • the internal combustion engine has a combustion chamber 3 in a cylinder 1 above a piston 2, into which an inlet channel 4 leads, which is controlled by means of an inlet valve 5.
  • An outlet channel 7 controlled by an exhaust valve 6 leads away from the combustion chamber 3.
  • the fuel is not injected, but rather is introduced into the inlet duct 4 by means of a carburetor 8.
  • a conventional throttle valve 9 is connected upstream of the carburetor 8.
  • a glow plug 10 which is required anyway for starting the internal combustion engine and leads into the combustion chamber 3, simultaneously serves as a sensor for monitoring the internal combustion engine.
  • a voltage source 11 Glow plug 10 leading line 12 an electrical resistance measuring device 13 switched. This measures the current flow through line 12. Since this is directly dependent on the electrical resistance of glow plug 10, which changes with the temperature of glow plug 10, the resistance measuring device provides information about the temperature of the glow plug.
  • evaluation electronics 14 Downstream of the resistance measuring device is evaluation electronics 14, which take into account in particular the fluctuations in the electrical resistance. For example, it can control a display instrument 15, which is, for example, a tachometer. It is also possible that the evaluation electronics 14 compares the value measured by the resistance measuring device 13 with a setpoint from the setpoint generator 16 and immediately actuates an actuator, for example the throttle valve 9.
  • the setpoint generator 16 is the receiving system which receives its control commands from the remote control transmitter .

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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)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

In an internal combustion engine having a glow plug (10) a resistance measuring device (13) is provided for determining the electrical resistance and hence the temperature of the glow plug (10). On the basis of the periodic temperature fluctuations, it is possible, for example, by means of analysing electronics (14), to determine the speed of rotation of the internal combustion engine. <IMAGE>

Description

Die Erfindung bezieht sich auf eine selbstzündende Ver­brennungskraftmaschine mit einer Glühkerze. Solche Ver­brennungskraftmaschinen sind allgemein unter der Bezeich­nung "Dieselmotoren" bekannt und werden vielfältig ein­gesetzt.The invention relates to a self-igniting internal combustion engine with a glow plug. Such internal combustion engines are generally known under the name "diesel engines" and are used in many different ways.

Die Optimierung der Arbeitsweise einer Verbrennungskraft­maschine gewinnt in letzter Zeit zunehmend an Bedeutung. Durch effektive Steuerung einer Verbrennungskraftmaschi­ne kann man beispielsweise für optimalen Wirkungsgrad, einen möglichst geringen Verbrauch, eine möglichst un­schädliche Abgaszusammensetzung, eine niedrige Geräuschs­bildung und eine möglichst lange Lebensdauer sorgen. Um solche Optimierungen unter den jeweils wechselnden Be­triebsbedingungen vornehmen zu können, werden in der Verbrennungskraftmaschine zahlreiche Sensoren ange­bracht, die eine Auswertelektronik mit Informationen über das Betriebsverhalten der Verbrennungskraftmaschine versorgen. Ungünstige Betriebswerte werden dann entweder angezeigt oder selbsttätig durch Betätigung von Stell­gliedern zu günstigen Betriebswerten hin verändert. Man spricht bei solchen Einrichtungen von einem Motormanage­ment.Optimizing the way an internal combustion engine works has recently become increasingly important. Effective control of an internal combustion engine can ensure, for example, optimum efficiency, the lowest possible consumption, the most harmless exhaust gas composition, low noise and the longest possible service life. In order to be able to carry out such optimizations under the respective changing operating conditions, numerous sensors are installed in the internal combustion engine, which supply evaluation electronics with information about the operating behavior of the internal combustion engine. Unfavorable operating values are then either displayed or automatically changed to favorable operating values by actuating actuators. Such facilities are referred to as engine management.

Nachteilig bei den bekannten Verbrennungskraftmaschinen ist es, daß die Anordnung von Sensoren relativ hohe Kosten verursacht. Besonders aufschlußreich für die Arbeitsweise einer Verbrennungskraftmaschine ist die Temperatur in ihrem Inneren. Gerade dort sind jedoch mit den bisher bekannten Mitteln Temperaturen nur mit großem Aufwand zu messen.A disadvantage of the known internal combustion engines is that the arrangement of sensors causes relatively high costs. The temperature inside an internal combustion engine is particularly instructive. Especially there, however, temperatures can only be measured with great effort using the previously known means.

Der Erfindung liegt die Aufgabe zugrunde, eine Verbren­nungskraftmaschine mit einer Glühkerze derart auszubil­den, daß eine optimale Steuerung und Regelung mit mög­lichst geringem Aufwand durchzuführen istThe object of the invention is to design an internal combustion engine with a glow plug in such a way that optimal control and regulation can be carried out with as little effort as possible

Diese Aufgabe wird erfindungsgemäß gelöst durch eine elektrische Widerstands...eßeinrichtung zur Bestimmung des elektrischen Widerstandes der Glühkerze.This object is achieved according to the invention by an electrical resistance ... measuring device for determining the electrical resistance of the glow plug.

Mittels einer solchen Widerstandsmeßeinrichtung läßt sich mit äußerst geringem Aufwand die Temperatur der Glühkerze bestimmen. Die Glühkerze, welche bei selbst­zündenden Brennkraftmaschinen üblicherweise zum Starten der Brennkraftmaschine erforderlich ist, wird dank der Erfindung als Temperaturfühler verwendet, da sie in Ab­hängigkeit von der Temperatur im Brennraum ihren elek­trischen Widerstand verändert. Dadurch kann man die Temperatur im Brennraum ermitteln, ohne daß hierzu ein zusätzlicher Temperatursensor erforderlich wird. Dank der Erfindung können praktisch alle temperaturabhängigen Effekte innerhalb der Verbrennungskraftmaschine beobach­tet und gemessen werden. Bei mehrzylindrischen Verbren­nungskraftmaschinen läßt sich die mittlere Temperatur jedes Zylinders über den Widerstand der jeweiligen Glüh­kerze bestimmen. Dadurch kann man Unregelmäßigkeiten der Verbrennung in einzelnen Zylindern auf einfache Weise feststellen. Auch die Zündzeitpunkte sind leicht fest­stellbar, weil mit der Zündung jeweils ein Anstieg der Temperatur der Glühkerze durch das verbrennende Gemisch erfolgt. Auch ein zu fettes oder zu mageres Gemisch ist über die Temperatur feststellbar, weil dieses beim Ein­strömen in den Brennraum je nach Zusammensetzung mehr oder weniger die Glühkerze abkühlt.With such a resistance measuring device, the temperature of the glow plug can be determined with extremely little effort. Thanks to the invention, the glow plug, which is usually required in auto-ignition internal combustion engines to start the internal combustion engine, is used as a temperature sensor, since it changes its electrical resistance as a function of the temperature in the combustion chamber. This allows the temperature in the combustion chamber to be determined without the need for an additional temperature sensor. Thanks to the invention, practically all temperature-dependent effects within the internal combustion engine can be observed and measured. In multi-cylinder internal combustion engines, the average temperature of each cylinder can be determined via the resistance of the respective glow plug. This makes it easy to determine combustion irregularities in individual cylinders. The ignition timing is also easy to determine because the ignition causes the temperature of the glow plug to rise due to the burning mixture. A mixture that is too rich or too lean can also be determined via the temperature, because this more or less cools the glow plug when it flows into the combustion chamber, depending on the composition.

Die erfindungsgemäße Widerstandsmeßeinrichtung gibt bei­spielsweise Aufschluß darüber, ob das Temperaturniveau im Brennraum zu hoch oder zu niedrig ist. Einen wesent­lich weitergehenden Aufschluß über die Arbeitsweise der Verbrennungskraftmaschine erhält man allerdings, wenn gemäß einer vorteilhaften Ausgestaltung der Erfindung die Widerstandsmeßeinrichtung mit einer Auswertelektro­nik zur Ermittlung von Betriebsdaten der Verbrennungs­kraftmaschine aufgrund der mit der Zündfrequenz perio­disch schwankenden Temperatur und damit des entsprechend schwankenden Widerstandes der Glühkerze verbunden ist.The resistance measuring device according to the invention provides information, for example, as to whether the temperature level in the combustion chamber is too high or too low. A much more extensive information about the mode of operation of the internal combustion engine is obtained, however, if, according to an advantageous embodiment of the invention, the resistance measuring device is connected to evaluation electronics for determining operating data of the internal combustion engine on the basis of the temperature which fluctuates periodically with the ignition frequency and thus the correspondingly fluctuating resistance of the glow plug.

Die Widerstandsmeßeinrichtung kann einen Drehzahlsensor ersetzen, wenn die Auswertelektronik zur Emittlung der Drehzahl der Brennkraftmaschine aufgrund der perio­dischen Temperaturschwankungen des Glühstiftes ausgelegt ist.The resistance measuring device can replace a speed sensor if the evaluation electronics are designed to determine the speed of the internal combustion engine due to the periodic temperature fluctuations of the glow plug.

Die Widerstandsmeßeinrichtung könnte Meßwertgeber für verschiedene Anzeigeinstrumente, beispielsweise ein Thermometer oder eine Drehzahlanzeige, sein. Möglich ist es jedoch auch, die Widerstandsmeßeinrichtung als Meß­wertgeber für einen selbsttätigen Regelkreis einzuset­zen, indem die Auswertelektronik zumindest ein Stell­glied zur Steuerung oder Regelung der Verbrennungskraft­maschine aufweist.The resistance measuring device could be a transducer for various display instruments, for example a thermometer or a speed display. However, it is also possible to use the resistance measuring device as a measuring value transmitter for an automatic control circuit by the evaluation electronics having at least one actuator for controlling or regulating the internal combustion engine.

Das Stellglied kann sehr unterschiedliche Einflußgrößen steuern, beispielsweise die Kühlmittelzufuhr. Für Ver­brennungskraftmaschinen von Modellen (Flugzeug/Schiff/ Auto/Hubschrauber) ist es vorteilhaft, wenn das Stell­glied einen Drehzahlregler steuert. Ein besonders vor­teilhaftes Motormanagement ergibt sich, wenn das Stell­glied zur Gemischeinstellung der Verbrennungskraftmaschi­ne ausgebildet ist.The actuator can control very different influencing variables, for example the coolant supply. For internal combustion engines of models (aircraft / ship / car / helicopter) it is advantageous if the actuator controls a speed controller. A particularly advantageous engine management system results if the actuator is configured to adjust the mixture of the internal combustion engine.

Der Zündzeitpunkt einer ansich selbstzündenden Verbren­nungskraftmaschine kann vorverlegt werden, wenn das Stellglied zur drehzahlabhängigen Zuführung von Heiz­strom zur Glühkerze ausgebildet ist. Bei einer solchen Verbrennungskraftmaschine wird das Zünden durch perio­disches Aufheizen der Glühkerze eingeleitet. Dadurch ergibt sich eine weitere Möglichkeit der Beeinflussung des Arbeitens der Verbrennungskraftmaschine.The ignition timing of a self-igniting internal combustion engine can be brought forward if the actuator is designed for the speed-dependent supply of heating current to the glow plug. In such an internal combustion engine, ignition is initiated by periodically heating up the glow plug. This results in a further possibility of influencing the work of the internal combustion engine.

Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon stark schematisch in der Zeichnung dargestellt und wird nachfolgend beschrieben.The invention allows numerous embodiments. To further clarify its basic principle, one of them is shown very schematically in the drawing and is described below.

Die Zeichnung zeigt im Schnitt den oberen Bereich einer nach dem Viertaktverfahren arbeitenden, selbstzündenden Verbrennungskraftmaschine, wie sie beispielsweise für Modellflugzeuge eingesetzt wird. Die Verbrennungskraftma­schine hat in einem Zylinder 1 oberhalb eines Kolbens 2 einen Brennraum 3, in den ein Einlaßkanal 4 führt, wel­cher mittels eines Einlaßventils 5 gesteuert ist. Vom Brennraum 3 weg führt ein von einem Auslaßventil 6 ge­steuerter Auslaßkanal 7.The drawing shows in section the upper area of a four-stroke, self-igniting internal combustion engine, such as is used for model aircraft. The internal combustion engine has a combustion chamber 3 in a cylinder 1 above a piston 2, into which an inlet channel 4 leads, which is controlled by means of an inlet valve 5. An outlet channel 7 controlled by an exhaust valve 6 leads away from the combustion chamber 3.

Anders als bei selbstzündenden Verbrennungskraftmaschi­nen für beispielsweise Kraftfahrzeuge wird bei der ge­zeigten, für ein Modell bestimmten Verbrennungskraft­maschine der Kraftstoff nicht eingespritzt, sondern mit­tels eines Vergasers 8 in den Einlaßkanal 4 eingegeben. Dem Vergaser 8 vorgeschaltet ist eine übliche Drossel­klappe 9.In contrast to self-igniting internal combustion engines for motor vehicles, for example, in the internal combustion engine shown, which is intended for a model, the fuel is not injected, but rather is introduced into the inlet duct 4 by means of a carburetor 8. A conventional throttle valve 9 is connected upstream of the carburetor 8.

Wichtig für die Erfindung ist, daß eine zum Starten der Verbrennungskraftmaschine ohnehin erforderliche, in den Brennraum 3 führende Glühkerze 10 gleichzeitig als Sen­sor zur Überwachung der Verbrennungskraftmaschine dient. Hierzu ist in einer von einer Spannungsquelle 11 zur Glühkerze 10 führenden Leitung 12 eine elektrische Widerstandsmeßeinrichtung 13 geschaltet. Diese mißt den Stromfluß durch die Leitung 12. Da dieser unmittelbar vom sich mit der Temperatur der Glühkerze 10 ändernden elektrischen Widerstand der Glühkerze 10 abhängig ist, gibt die Widerstandsmeßeinrichtung Aufschluß über die Temperatur der Glühkerze.It is important for the invention that a glow plug 10, which is required anyway for starting the internal combustion engine and leads into the combustion chamber 3, simultaneously serves as a sensor for monitoring the internal combustion engine. For this purpose, in one of a voltage source 11 Glow plug 10 leading line 12 an electrical resistance measuring device 13 switched. This measures the current flow through line 12. Since this is directly dependent on the electrical resistance of glow plug 10, which changes with the temperature of glow plug 10, the resistance measuring device provides information about the temperature of the glow plug.

Der Widerstandsmeßeinrichtung nachgeschaltet ist eine Auswertelektronik 14, die insbesondere die Schwankungen des elektrischen Widerstandes berücksichtigt. Sie kann beispielsweise ein Anzeigeinstrument 15 ansteuern, bei dem es sich beispielsweise um einen Drehzahlmesser han­delt. Möglich ist es auch, daß die Auswertelektronik 14 den von der Widerstandsmeßeinrichtung 13 gemessenen Wert mit einem Sollwert vom Sollwertgeber 16 vergleicht und unmittelbar danach ein Stellglied betätigt, beispiels­weise die Drosselklappe 9. Der Sollwertgeber 16 ist im Modellsport die Empfangsanlage, welche ihre Steuerbe­fehle vom Fernsteuersender erhält.Downstream of the resistance measuring device is evaluation electronics 14, which take into account in particular the fluctuations in the electrical resistance. For example, it can control a display instrument 15, which is, for example, a tachometer. It is also possible that the evaluation electronics 14 compares the value measured by the resistance measuring device 13 with a setpoint from the setpoint generator 16 and immediately actuates an actuator, for example the throttle valve 9. In model sport, the setpoint generator 16 is the receiving system which receives its control commands from the remote control transmitter .

Auflistung der verwendeten BezugszeichenList of the reference symbols used

  • 1 Zylinder1 cylinder
  • 2 Kolben2 pistons
  • 3 Brennraum3 combustion chamber
  • 4 Einlaßkanal4 inlet duct
  • 5 Einlaßventil5 inlet valve
  • 6 Auslaßventil6 exhaust valve
  • 7 Auslaßkanal7 outlet duct
  • 8 Vergaser8 carburettors
  • 9 Drosselklappe9 throttle valve
  • 10 Glühkerze10 glow plugs
  • 11 Spannungsquelle11 voltage source
  • 12 Leitung12 line
  • 13 Widerstandsmeßeinrichtung13 resistance measuring device
  • 14 Auswertelektronik14 evaluation electronics
  • 15 Anzeigeinstrument15 display instrument
  • 16 Sollwertgeber16 setpoint adjuster

Claims (8)

1. Selbstzündende Verbrennungskraftmaschine mit einer Glühkerze, gekennzeichnet durch eine elektrische Wider­standsmeßeinrichtung (13) zur Bestimmung des elektri­schen Widerstandes der Glühkerze (10).1. Self-igniting internal combustion engine with a glow plug, characterized by an electrical resistance measuring device (13) for determining the electrical resistance of the glow plug (10). 2. Selbstzündende Verbrennungskraftmaschine nach An­spruch 1, dadurch gekennzeichnet, daß die Widerstandsmeß­einrichtung (13) mit einer Auswertelektronik (14) zur Er­mittlung von Betriebsdaten der Verbrennungskraftmaschine aufgrund der mit der Zündfrequenz periodisch schwanken­den Temperatur und damit des entsprechend schwankenden Widerstandes der Glühkerze (10) verbunden ist.2. Self-igniting internal combustion engine according to claim 1, characterized in that the resistance measuring device (13) with evaluation electronics (14) for determining operating data of the internal combustion engine based on the periodically fluctuating with the ignition frequency temperature and thus the correspondingly fluctuating resistance of the glow plug (10) is connected . 3. Selbstzündende Verbrennungskraftmaschine nach An­spruch 1, dadurch gekennzeichnet, daß die Auswertelektro­nik (14) zur Ermittlung der Drehzahl der Brennkraftma­schine aufgrund der periodischen Temperaturschwankungen der Glühkerze (10) ausgelegt ist.3. Self-igniting internal combustion engine according to claim 1, characterized in that the evaluation electronics (14) for determining the speed of the internal combustion engine is designed on the basis of the periodic temperature fluctuations of the glow plug (10). 4. Selbstzündende Verbrennungskraftmaschine nach einem oder mehreren der vorangehenden Ansprüche, dadurch ge­kennzeichnet, daß die Auswertelektronik (14) zumindest ein Stellglied zur Steuerung oder Regelung der Verbren­nungskraftmaschine aufweist.4. Self-igniting internal combustion engine according to one or more of the preceding claims, characterized in that the evaluation electronics (14) has at least one actuator for controlling or regulating the internal combustion engine. 5. Selbstzündende Verbrennungskraftmaschine nach einem oder mehreren der vorangehenden Ansprüche, dadurch ge­kennzeichnet, daß ein Drehzahlregler zum Steuern eines Stellgliedes ausgebildet ist.5. Self-igniting internal combustion engine according to one or more of the preceding claims, characterized in that a speed controller is designed to control an actuator. 6. Selbstzündende Verbrennungskraftmaschine nach einem oder mehreren der vorangehenden Ansprüche, dadurch ge­kennzeichnet, daß das Stellglied zum Steuern der Ge­mischeinstellung der Verbrennungskraftmaschine ausge­bildet ist.6. Self-igniting internal combustion engine according to one or more of the preceding claims, characterized in that the actuator is designed for controlling the mixture setting of the internal combustion engine. 7. Selbstzündende Verbrennungskraftmaschine nach einem oder mehreren der vorangehenden Ansprüche, dadurch ge­kennzeichnet, daß das Stellglied zur drehzahlabhängigen Zuführung von Heizstrom zur Glühkerze (10) ausgebildet ist.7. Self-igniting internal combustion engine according to one or more of the preceding claims, characterized in that the actuator is designed for the speed-dependent supply of heating current to the glow plug (10). 8. Selbstzündende Verbrennungskraftmaschine nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Stellglied zur Steuerung der Kühhlmittelzufuhr ausgebildet ist.8. Self-igniting internal combustion engine according to one or more of the preceding claims, characterized in that the actuator is designed for controlling the coolant supply.
EP88119266A 1987-11-23 1988-11-19 Compression ignition for a combustion engine Expired - Lifetime EP0317922B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT8888119266T ATE105375T1 (en) 1987-11-23 1988-11-19 SELF-IGNITIONING COMBUSTION ENGINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873739600 DE3739600A1 (en) 1987-11-23 1987-11-23 SELF-IGNITION COMBUSTION ENGINE
DE3739600 1987-11-23

Publications (2)

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EP0317922A1 true EP0317922A1 (en) 1989-05-31
EP0317922B1 EP0317922B1 (en) 1994-05-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119266A Expired - Lifetime EP0317922B1 (en) 1987-11-23 1988-11-19 Compression ignition for a combustion engine

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EP (1) EP0317922B1 (en)
AT (1) ATE105375T1 (en)
DE (2) DE3739600A1 (en)
ES (1) ES2051818T3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP0603796A2 (en) * 1992-12-23 1994-06-29 BERU Ruprecht GmbH &amp; Co. KG Flame starting system for internal combustion device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014966A1 (en) * 1990-05-10 1991-11-14 Kloeckner Humboldt Deutz Ag Engine diagnosis method using temp. chamber sensitive element - to measure combustion chamber temp. at indication of engine load
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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US3708683A (en) * 1971-05-12 1973-01-02 Thermo King Corp Diesel engine starting switch and circuit
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4360765A (en) * 1980-03-07 1982-11-23 Diesel Kiki Kabushiki Kaisha Control circuit for a glow plug assembly serving as an engine preheating means
GB2159578A (en) * 1984-06-01 1985-12-04 Bosch Gmbh Robert Controlling the temperature of a glow plug in an internal combustion engine
US4726333A (en) * 1986-11-28 1988-02-23 Caterpillar Inc. Glow plug alternator control

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JPS56121870A (en) * 1980-03-03 1981-09-24 Diesel Kiki Co Ltd Preheating controller for diesel engine
JPS578360A (en) * 1980-06-19 1982-01-16 Diesel Kiki Co Ltd Glow plug preheating controller
JPS6053798B2 (en) * 1981-06-10 1985-11-27 株式会社ボッシュオートモーティブ システム Glow plug preheating control device
YU115584A (en) * 1984-07-02 1987-06-30 Iskra Sozd Elektro Indus Circuit for automatic controlled glowing device
DE3433367A1 (en) * 1984-09-12 1986-03-20 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR CONTROLLING THE ENERGY SUPPLY TO A HOT PLACE
EP0315934B1 (en) * 1987-11-09 1994-01-19 Siemens Aktiengesellschaft Regulation method for the glow plug temperature in a diesel engine, and circuit therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708683A (en) * 1971-05-12 1973-01-02 Thermo King Corp Diesel engine starting switch and circuit
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4360765A (en) * 1980-03-07 1982-11-23 Diesel Kiki Kabushiki Kaisha Control circuit for a glow plug assembly serving as an engine preheating means
GB2159578A (en) * 1984-06-01 1985-12-04 Bosch Gmbh Robert Controlling the temperature of a glow plug in an internal combustion engine
US4726333A (en) * 1986-11-28 1988-02-23 Caterpillar Inc. Glow plug alternator control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603796A2 (en) * 1992-12-23 1994-06-29 BERU Ruprecht GmbH &amp; Co. KG Flame starting system for internal combustion device
EP0603796A3 (en) * 1992-12-23 1994-11-09 Beru Werk Ruprecht Gmbh Co A Flame starting system for internal combustion device.

Also Published As

Publication number Publication date
ES2051818T3 (en) 1994-07-01
DE3889428D1 (en) 1994-06-09
ATE105375T1 (en) 1994-05-15
EP0317922B1 (en) 1994-05-04
DE3739600A1 (en) 1989-06-01

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