DE2430323A1 - IC engine ignition and injection control - has detector of pressure max in cylinder after ignition and piston position pick-up - Google Patents

IC engine ignition and injection control - has detector of pressure max in cylinder after ignition and piston position pick-up

Info

Publication number
DE2430323A1
DE2430323A1 DE2430323A DE2430323A DE2430323A1 DE 2430323 A1 DE2430323 A1 DE 2430323A1 DE 2430323 A DE2430323 A DE 2430323A DE 2430323 A DE2430323 A DE 2430323A DE 2430323 A1 DE2430323 A1 DE 2430323A1
Authority
DE
Germany
Prior art keywords
ignition
control
piston position
injection control
piston
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.)
Pending
Application number
DE2430323A
Other languages
German (de)
Inventor
Karl-Heinz Riebschlaeger
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.)
RIEBSCHLAEGER KARL HEINZ
Original Assignee
RIEBSCHLAEGER KARL HEINZ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RIEBSCHLAEGER KARL HEINZ filed Critical RIEBSCHLAEGER KARL HEINZ
Priority to DE2430323A priority Critical patent/DE2430323A1/en
Publication of DE2430323A1 publication Critical patent/DE2430323A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/1455—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means by using a second control of the closed loop type
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • 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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The combustion engine ignition and injection control system has a measuring device for detecting the pressure maximum in the combustion chamber after igniting as a control magnitude. A piston or crankshaft position pick-up presents an optimum piston position for the pressure maximum, as a reference magnitude. A control device evaluates the time deviation between the reference and control magnitudes for correction of the ignition timing movement for the next following working stroke. Instead of the ignition timing movement the injecting timing point of the next stroke may be controlled. The control system increases the engine efficiency and reduces pollution by exhaust gases.

Description

Einrichtung zur Bestimmung des Zünd- bzw. Einspritzzeitpunktes bei Verbrennungsmotoren Die Erfindung bezieht sich auf eine Regeleinrichtung für die Zündung von Verbrennungsmotoren.Device for determining the ignition or injection time at Internal combustion engines The invention relates to a control device for Ignition of internal combustion engines.

Der zeitliche Verzug von der Zündung (bzw. der Einspritzung) des Kraftstoffgemisches im Verbrennungsraum einer Verbrennungsmaschine bis zum maximalen Druck nach der Verbrennung beeinflußt den Wirkungsgrad und den Schadstoffausstoß der Maschine. Es ist deshalb wünschenswert, diesen zeitlichen Verzug, der von vielen Störgrößen abhängig ist, derart zu optimieren, daß der bestmöglichste Wirkungsgrad bei geringstmöglichem Schadstoffausstoß erreicht wird.The time lag from the ignition (or injection) of the fuel mixture in the combustion chamber of an internal combustion engine up to the maximum pressure after the Combustion influences the efficiency and pollutant emissions of the machine. It is therefore desirable to avoid this time lag, which is caused by many disturbance variables is dependent on optimizing in such a way that the best possible efficiency with the lowest possible Pollutant emissions is achieved.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine mit geringem Aufwand arbeitende Regeleinrichtung anzugeben, welche dafür sorgt, daß der maximale Druck im Verbrengsraum auf die optimale Kolbenstellung nach dem oberen Totpunkt geregelt wird.The invention is therefore based on the object, one with low Specify the effort of the control device, which ensures that the maximum pressure in the combustion chamber on the optimal piston position after top dead center is regulated.

Diese Aufgabe wird für eine Regeleinrichtung der eingangs genannten Art gemäß der Erfindung dadurch gelöst, daß eine Meßeinrichtung die nach einer Zündung das Druckmaxirum im Verbrennungsraum als Regelgröße (Istwert) erfaßt und ein Kolben- oder Kurbelwellenstellungsgeber, der die optimale Kolbenstellung für das Druckmaximum als Führungsgröße (Sollwert) vorgibt, sowie ein Regler vorgesehen sind, der die zeitliche Abweichung zwischen Führungs- und Regelgröße zur Korrektur des Zündzeitpunktes für den nächstfolgenden Arbeitstakt auswertet.This task is for a control device of the aforementioned Type solved according to the invention in that a measuring device after an ignition the pressure maximum in the combustion chamber is recorded as a controlled variable (actual value) and a piston or crankshaft position sensor, which sets the optimum piston position for the maximum pressure as a reference variable (setpoint), and a controller is provided that controls the Temporal deviation between the command and control variable for correcting the ignition point for the next working cycle.

Damit ist es ohne großen Aufwand möglich, den Zündzeitpunkt für das Kraftstoffgemisch derart optimal einzustellen, daß Wirkungsgrad und Schadstoffausstoß in gewünschter Weise verändert werden.This makes it possible to set the ignition point for the Adjust the fuel mixture optimally in such a way that efficiency and pollutant emissions can be changed as desired.

Anstelle des Zündzeitpunktes kann auch der Einspritzzeitpunkt des nächstfolgenden Arbeitstaktes über den Regler zum gleichen Zweck positiv beeinflußt werden.Instead of the ignition timing, the injection timing of the the next working cycle is positively influenced by the controller for the same purpose will.

Der Zeitpunkt der Abgabe der Führungsgröße ist zweckmäßigerweise einstellbar, um die Führungsgröße je nach den Betriebsbedingungen des Verbrennungsmotors auf den optimalen Zeitpunkt ändern zu können.The point in time at which the reference variable is output is expediently adjustable, around the reference variable depending on the operating conditions of the internal combustion engine to be able to change at the optimal time.

In spezieller technischer Ausführung können Erfassung und Vergleich von Führungs- und Regel größe in Analog- und/oder Digitalzähltechnik erfolgen.In a special technical design, acquisition and comparison of command and control variables in analog and / or digital counting technology.

Die Erfindung wird für ein Ausführungsbeispiel im folgenden anhand der Zeichnungsfigur beschrieben: Nach einer Zündung des Kraftstoffgemisches Im durch ein Teil seiner Wand 3 angedeuteten Verbrennungsraum 2 des Verbrennungsmotors wird das Druckmaximum durch die Meßeinrichtung 4 als Regelgröße X erfaßt. Der Kurbelwellenstellungsgeber 5 gibt die optimale Stellung der in Pfeilrichtung rotierenden Kurbelwelle 1 für das Druckmaximum als Führungsgröße W vor. Die Führungsgröße W und die Regelgröße X werden der vorgeschalteten Vergleichsstufe 6 des Reglers 8 zugeführt, wobei über den Ausgang 10 durch den dem Regler 8 nachgeschalteten Zündzeitpunktgeber 9 der(nichtgezeigten) Zündspule der auf das Optimum ausgeregelte Zündimpuls (Stellung a der Kurbelwelle) für den nächstfolgenden Arbeitstakt abgegeben wird.The invention is based on an exemplary embodiment in the following of the drawing figure: After ignition of the fuel mixture Im through part of its wall 3 is indicated combustion chamber 2 of the internal combustion engine the pressure maximum is detected by the measuring device 4 as the controlled variable X. The crankshaft position sensor 5 shows the optimal position of the crankshaft 1 rotating in the direction of the arrow the maximum pressure as the reference variable W. The reference variable W and the controlled variable X are fed to the upstream comparison stage 6 of the controller 8, with over the output 10 through the ignition timing generator 9 of the (not shown) connected downstream of the controller 8 Ignition coil the ignition pulse regulated to the optimum (position a of the crankshaft) for the next working cycle.

Anstelle des Zündzeitpunktes kann auch über den Ausgang 11 der optimale Einspritzzeitpunkt b eingeregelt werden. Der Zündzeitpunktgeber 9 arbeitet dann als Einspritzzeitpunktgeber über den Ausgang 11 auf die (nicht gezeigte) Einspritzpumpe des Verbrennungsmotors.Instead of the ignition time, the optimal one can also be used via output 11 Injection time b are regulated. Of the Ignition timing generator 9 then works as an injection timing generator via output 11 to the (not shown) Injection pump of the internal combustion engine.

Extern kann zur Anpassung an die Betriebsbedingungen des Verbrennungsmotors über den Eingang 7 des Reglers 8 der Sollwert verstellt werden.External can be used to adapt to the operating conditions of the internal combustion engine The setpoint can be adjusted via input 7 of controller 8.

4 Seiten Beschreibung 2 Patentansprüche 1 Blatt Zeichnung mit einer Figur 14 pages description 2 claims 1 sheet of drawing with a Figure 1

Claims (2)

P a t e n t a n s p r ü c h e Regeleinrichtung für die Zündung von Verbrennungsmotoren, dadurch gekenichnet daß eine Meßeinrichtung (4), die nach einer Zündung das Druckmaximum im Verbrennungsraum (2) als Regelgröße (X) erfaßt und ein Kolben- oder Kurbelwellenstellungsgeber (1), der die optimale Kolbenstellung für das Druckmaximum als Führungsgröße (W) vorgibt, sowie ein Regler (8) vorgesehen sind, der die zeitliche Abweichung zwischen Führungs (W)-und Regelgröße (X) zur Korrektur des Zündzeitpunktes (a) für den nächstfolgenden Arbeitstakt auswertet. P a t e n t a n s p r ü c h e control device for the ignition of Internal combustion engines, characterized in that a measuring device (4), which after a Ignition, the pressure maximum in the combustion chamber (2) is detected as a control variable (X) and a Piston or crankshaft position sender (1) that determines the optimum piston position for specifies the maximum pressure as the reference variable (W), and a controller (8) is provided which is the time difference between the command (W) and controlled variable (X) for Correction of the ignition point (a) evaluates for the next working cycle. 2. Regeleinrichtung nach Anspruch 1, dadurch gekennzeichnet1 daß anstelle des Zündzeitpunktes (a) der Einspritzzeitpunkt (b) des nächstfolgenden Arbeitstaktes durch den Regler (8) korrigiert ist.2. Control device according to claim 1, characterized1 that instead of the ignition point (a) the injection point (b) of the next working cycle corrected by the controller (8). LeerseiteBlank page
DE2430323A 1974-06-21 1974-06-21 IC engine ignition and injection control - has detector of pressure max in cylinder after ignition and piston position pick-up Pending DE2430323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2430323A DE2430323A1 (en) 1974-06-21 1974-06-21 IC engine ignition and injection control - has detector of pressure max in cylinder after ignition and piston position pick-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2430323A DE2430323A1 (en) 1974-06-21 1974-06-21 IC engine ignition and injection control - has detector of pressure max in cylinder after ignition and piston position pick-up

Publications (1)

Publication Number Publication Date
DE2430323A1 true DE2430323A1 (en) 1976-01-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930013A1 (en) * 1978-07-26 1980-02-07 Inst Francais Du Petrol METHOD AND ARRANGEMENT FOR CONTROLLING THE IGNITION CONTROL OF AN EXPLOSION ENGINE
DE2939580A1 (en) * 1979-09-29 1981-04-09 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR REGULATING THE IGNITION TIMING
FR2497279A1 (en) * 1980-12-31 1982-07-02 Lucas Industries Ltd SYSTEM FOR MOTORS
EP1079087A2 (en) * 1999-08-23 2001-02-28 Ngk Spark Plug Co., Ltd. Method of controlling a direct fuel injection engine and storage medium storing the same
WO2002046591A1 (en) * 2000-12-05 2002-06-13 Detroit Diesel Corporation Method of controlling an internal combustion engine
US6553305B2 (en) * 2000-12-29 2003-04-22 Visteon Global Technologies, Inc. Real time adaptive engine position estimation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930013A1 (en) * 1978-07-26 1980-02-07 Inst Francais Du Petrol METHOD AND ARRANGEMENT FOR CONTROLLING THE IGNITION CONTROL OF AN EXPLOSION ENGINE
DE2939580A1 (en) * 1979-09-29 1981-04-09 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR REGULATING THE IGNITION TIMING
FR2497279A1 (en) * 1980-12-31 1982-07-02 Lucas Industries Ltd SYSTEM FOR MOTORS
EP1079087A2 (en) * 1999-08-23 2001-02-28 Ngk Spark Plug Co., Ltd. Method of controlling a direct fuel injection engine and storage medium storing the same
EP1079087A3 (en) * 1999-08-23 2003-03-19 Ngk Spark Plug Co., Ltd. Method of controlling a direct fuel injection engine and storage medium storing the same
WO2002046591A1 (en) * 2000-12-05 2002-06-13 Detroit Diesel Corporation Method of controlling an internal combustion engine
US6484694B2 (en) 2000-12-05 2002-11-26 Detroit Diesel Corporation Method of controlling an internal combustion engine
US6553305B2 (en) * 2000-12-29 2003-04-22 Visteon Global Technologies, Inc. Real time adaptive engine position estimation

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