DE4205266C1 - Controlling intake line cross=section in fuel injection engine - taking operating parameters into account, reading them from identification field memory, which has been established in tests - Google Patents

Controlling intake line cross=section in fuel injection engine - taking operating parameters into account, reading them from identification field memory, which has been established in tests

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Publication number
DE4205266C1
DE4205266C1 DE4205266A DE4205266A DE4205266C1 DE 4205266 C1 DE4205266 C1 DE 4205266C1 DE 4205266 A DE4205266 A DE 4205266A DE 4205266 A DE4205266 A DE 4205266A DE 4205266 C1 DE4205266 C1 DE 4205266C1
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DE
Germany
Prior art keywords
throttle valve
section
operating parameters
tests
valve
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 - Fee Related
Application number
DE4205266A
Other languages
German (de)
Inventor
Josef Dipl.-Ing. 7000 Stuttgart De Ovelgoenne
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.)
Daimler Benz AG
Original Assignee
Mercedes Benz AG
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Publication date
Application filed by Mercedes Benz AG filed Critical Mercedes Benz AG
Priority to DE4205266A priority Critical patent/DE4205266C1/en
Application granted granted Critical
Publication of DE4205266C1 publication Critical patent/DE4205266C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F02B33/446—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs having valves for admission of atmospheric air to engine, e.g. at starting
    • 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
    • F02D41/0002—Controlling intake air
    • 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
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0223—Cooling water temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0227—Atmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/023—Engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0232—Fuel pump rack position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0288—Throttle control device specially adapted for spark-assisted compression-ignition engine (Diesel 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
    • F02D41/0002—Controlling intake air
    • F02D2041/0022—Controlling intake air for diesel engines by throttle control
    • 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
    • Y02T10/12—Improving ICE efficiencies
    • 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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Supercharger (AREA)

Abstract

The method involves controlling an opening cross-section of an intake pipe (1) of a fuel injection engine (2) with a mechanical loader (3) or a Roots compressor. This section is varied, according to a working parameter, by a throttle valve (6) in the intake pipe and there is also a by-pass channel (4), going round the Roots compressor, with a control valve (5). The working parameters of the engine, in actual cases, are entered into an identification field memory of the control unit (12) and the appropriate settings of the throttle valve are taken from this memory when a setting has to be changed. The identification field has been established in tests, with reduced noise, with different settings of the throttle valve of a typical diesel engine. ADVANTAGE - General reduction in noise for critical RPM and load conditions.

Description

Die Erfindung betrifft ein Verfahren zur Steuerung des Öff­ nungsquerschnittes im Ansaugrohr einer luftverdichtenden Ein­ spritzbrennkraftmaschine gemäß dem Oberbegriff des Patentan­ spruchs 1 und Vorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des Patentanspruchs 3.The invention relates to a method for controlling the public transport cross section in the intake pipe of an air-compressing inlet injection internal combustion engine according to the preamble of the patent claim 1 and device for performing the method according to the preamble of claim 3.

Aus der DE 33 01 319 A1 sind Maßnahmen zur Steuerung des Öff­ nungsquerschnittes im Ansaugrohr bekannt, durch die die insbe­ sondere bei lastfreiem Betrieb der Brennkraftmaschine infolge von Pulsationsschwingungen auftretenden Geräusche vermindert werden können.DE 33 01 319 A1 measures for controlling the public transport nungsquerschnittes known in the intake pipe through which the insbe especially when the internal combustion engine is under no-load operation reduced from noise vibrations can be.

Die Änderung des Öffnungsquerschnittes erfolgt durch eine un­ terdruckbetriebene Drosselklappe im Ansaugrohr, und zwar in Abhängigkeit von der Stellung magnetbetätigter Umschaltventile und in Abhängigkeit von der Stellung eines auf Temperatur an­ sprechenden Umschaltventiles. Die Drosselklappe ist voll ge­ öffnet, wenn der Motor unter Last läuft, und voll geschlossen, wenn der Motor zum Stillstand kommt. The opening cross-section is changed by an un throttle-operated throttle valve in the intake pipe, namely in Dependence on the position of solenoid-operated changeover valves and depending on the position of one on temperature speaking switching valve. The throttle valve is fully ge opens when the engine is under load and fully closed, when the engine stops.  

Bei dieser aufwendigen Ausführung wird bei lastfreiem Betrieb eine Zwischenstellung der Drosselklappe eingenommen. Geräusche sollen dadurch beseitigt werden.This elaborate version is designed for no-load operation an intermediate position of the throttle valve. Sounds should be eliminated.

Aus der DE 41 03 870 A1 ist ein Ansaugsystem mit mechanischem Auflader bekannt, welchem eine Drosselklappe vorgeschaltet ist, die sich in einem Niedriglastbereich der Brennkraftmaschine in einer geringen Öffnungsstellung befindet, um auf einen den Auflader umgehenden Bypass luftdurchsatzverändernd Einfluß zu nehmen. Die jeweilige Stellung der Drosselklappe dient noch als Ausgangsbasis für die Ansteuerung einer im Ansaugsystem ange­ ordneten Ventileinrichtung zur Rückführung der Ansaugluft in den Bypass.DE 41 03 870 A1 describes an intake system with a mechanical one Supercharger known, which is preceded by a throttle valve, which are in a low load range of the internal combustion engine a small open position to one of the Supercharger bypass bypassing air flow changing influence to take. The respective position of the throttle valve still serves as Starting basis for controlling one in the intake system arranged valve device for returning the intake air the bypass.

Aus der DE 39 32 420 A1 ist ein Verfahren zur Betätigung eines im Ansaugrohr einer luftverdichtenden Einspritzbrennkraftma­ schine angeordneten Drosselelementes bekannt, bei dem der durch die Drosselklappe gesteuerte Öffnungsquerschnitt betriebsparameterabhängig verändert wird. Dabei wird das Dros­ selelement in jedem Betriebspunkt der Brennkraftmaschine auf eine definierte Öffnungsstellung eingeregelt, welche einem aus einem gespeicherten Kennfeld ermittelten Absolutdruck ent­ spricht. Mit dem Verfahren wird eine Reduzierung der Schad­ stoffemission erreicht.DE 39 32 420 A1 describes a method for actuating a in the intake pipe of an air-compressing injection internal combustion engine machine arranged throttle element known in which the through the throttle valve controlled opening cross-section is changed depending on the operating parameters. The Dros selelement in each operating point of the internal combustion engine a defined opening position, which one from absolute stored pressure determined ent speaks. With the procedure, a reduction in harm emissions achieved.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der letztgenannten Art dahingehend auszubauen, daß sich eine stark ansauggeräuschdämpfende Wirkung in geräuschkritischen Drehzahl- und Lastbereichen der Brennkraft­ maschine realisieren läßt.The invention has for its object a method and to expand a device of the latter type that a strong intake noise dampening effect in noise-critical speed and load ranges of the internal combustion engine machine can be realized.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Vorteilhafte und förderliche Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved by the characterizing Features of claim 1 solved. Beneficial and beneficial  Developments of the invention are specified in the subclaims.

Durch die erfindungsgemäßen Maßnahmen ergibt sich der Vorteil, daß in bestimmten Betriebsbereichen der Brennkraftmaschine auftretende lästige Geräuschpegel gesenkt bzw. beseitigt werden, und zwar in einer Weise, in der für jede Motordrehzahl im geräuschkritischen Bereich ein möglichst optimaler Ansaug- bzw. Öffnungsquerschnitt im Ansaugrohr stromauf des mechanischen Aufladers zur Verfügung gestellt wird, um der Luftschallpulsation zwischen Luftfilter und mechanischem Auflader (z. B. Roots-Lader) wirksam zu begegnen.The measures according to the invention have the advantage that that in certain operating areas of the internal combustion engine annoying noise levels are reduced or eliminated, in such a way that for each engine speed in noise-critical area, the best possible suction or Opening cross section in the intake pipe upstream of the mechanical Charger is provided to reduce airborne noise between air filter and mechanical supercharger (e.g. Roots-Loader) effectively.

Die Ansteuerungs- und Verstellmittel zur Betätigung der den Öffnungsquerschnitt verändernden Drosselklappe ergeben eine bauraumsparende Lösung.The control and adjustment means for actuating the Throttle valve changing opening cross-section result in a space-saving solution.

Im folgenden wird die Erfindung anhand eines Ausführungsbei­ spieles näher erläutert. In der Zeichnung zeigt:In the following, the invention is illustrated by means of an embodiment game explained in more detail. The drawing shows:

Fig. 1 das mit einer Drosselklappe versehene Ansaugrohr mit mechanischem Auflader sowie ein elektro­ nisches Steuergerät zur Ansteuerung dieser Dros­ selklappe und Fig. 1, the provided with a throttle valve intake pipe with mechanical supercharger and an electronic control unit to control this throttle selfl and

Fig. 2 ein Flußdiagramm zur Darstellung der Arbeitsweise des elektronischen Steuergerätes. Fig. 2 is a flowchart showing the operation of the electronic control unit.

Fig. 1 zeigt ein Ansaugrohr 1 für eine luftverdichtende Ein­ spritzbrennkraftmaschine 2. Das Ansaugrohr 1 enthält einen mechnischen Auflader 3, z. B. einen Roots-Kompressor, und einen den Auflader 3 umgehenden Bypass 4 mit einem Steuerventil 5. Stromauf des Aufladers 3 ist eine den Öffnungsquerschnitt steuernde Drosselklappe 6 vorgesehen, die von einem Stellmotor 7 zur Verstellung des Klappenöffnungswinkels αDK betätigt wird. Der Stellmotor 7 besteht aus einer federbelasteten und unter­ druckbeaufschlagbaren Membran 7a in einem Membrangehäuse 7b, wobei die Membran 7a über ein Gestänge 8 mit der Drosselklappe 6 verbunden ist. Das Membrangehäuse 8 steht über eine Sauglei­ tung 9 mit einer Unterdruckpumpe 10 in Verbindung, wobei die Saugleitung 9 ein Druckmodulierventil 11 aufweist, das von ei­ nem elektronischen Steuergerät 12 betriebsparameterabhängig ansteuerbar ist. Fig. 1 shows an intake pipe 1 for an air-compressing an internal combustion engine 2nd The intake pipe 1 contains a mechanical supercharger 3 , for. B. a roots compressor, and a bypass 4 bypassing the supercharger 3 with a control valve 5 . Upstream of the supercharger 3 there is a throttle valve 6 which controls the opening cross section and is actuated by a servomotor 7 for adjusting the valve opening angle α DK . The servomotor 7 consists of a spring-loaded and pressurizable membrane 7 a in a membrane housing 7 b, the membrane 7 a is connected via a linkage 8 to the throttle valve 6 . The membrane housing 8 is connected via a suction line 9 to a vacuum pump 10 , the suction line 9 having a pressure modulating valve 11 which can be controlled by an electronic control unit 12 depending on the operating parameters.

In das Steuergerät 12 werden momentan vorliegende Betriebspa­ rameter der Brennkraftmaschine 2 eingegeben, z. B. die von einem Sensor 13 erfaßte Drehzahl n, die von einem Sensor 14 an der Reiheneinspritzpumpe 15 erfaßte Last L, die von einem Sensor 16 erfaßte Kühlwassertemperatur TKW und der von einem Sensor 17 erfaßte Atmosphärendruck Patm. In the control unit 12 present operating parameters of the internal combustion engine 2 are currently entered, for. B. the speed n detected by a sensor 13 , the load L detected by a sensor 14 on the in-line injection pump 15 , the cooling water temperature T KW detected by a sensor 16 and the atmospheric pressure P atm detected by a sensor 17 .

In dem Steuergerät 12 ist noch ein experimentell ermitteltes Kennfeld abgelegt, dessen in Abhängigkeit von Drehzahl, Last und sonstigen Betriebsparametern an einer Versuchs-Brennkraft­ maschine ermittelten zahlreichen Kennlinien αDK dem kon­ stanten Klappenöffnungswinkel bzw. Öffnungsquerschnitt ent­ sprechen.In the control unit 12 there is also an experimentally determined characteristic diagram, the numerous characteristic curves α DK of which depend on the speed, load and other operating parameters on a test internal combustion engine correspond to the constant flap opening angle or opening cross section.

Das vom Steuergerät 12 ausgegebene Ansteuersignal dient zur elektropneumatischen Betätigung der Drosselklappe 6. Die Ver­ stellung der Drosselklappe 6 kann aber auch rein pneumatisch, elektrisch oder mechanisch erfolgen.The control signal output by the control device 12 is used for the electropneumatic actuation of the throttle valve 6 . The adjustment of the throttle valve 6 can also be done purely pneumatically, electrically or mechanically.

Fig. 2 zeigt ein Flußdiagramm für das zuvor beschriebene Aus­ führungsbeispiel, das nachfolgend näher erläutert ist: Fig. 2 shows a flow chart for the previously described exemplary embodiment, which is explained in more detail below:

Nach dem Start 100 der Brennkraftmaschine 2 werden im Eingabe­ block 101 aktuelle Werte der Brennkraftmaschine erfaßt, wie Drehzahl n, Last L (z. B. RW=Regelweg an der Einspritzpumpe) und sonstige Werte, wie Kühlwassertemperatur TKW und Atmosphären­ druck Patm.After the start 100 of the internal combustion engine 2 , current values of the internal combustion engine are recorded in the input block 101 , such as speed n, load L (e.g. RW = control path on the injection pump) and other values, such as cooling water temperature T KW and atmospheric pressure P atm .

Im nachfolgenden Block 102 wird das korrigierte Lastsignal LK in Abhängigkeit von aktuell vorhandenen Betriebsparametern wie Kühlwassertemperatur TKW und Atmosphärendruck Patm, ermittelt.In the subsequent block 102 , the corrected load signal L K is determined as a function of currently available operating parameters such as cooling water temperature T KW and atmospheric pressure P atm .

Im Block 103 ist eine Vielzahl von experimentell ermittelten Klappenöffnungswinkeln αDK der Drosselklappe 6 abgelegt, die einem für den jeweiligen Betriebsbereich im Last- und Schubbe­ trieb der Versuchsbrennkraftmaschine bestimmten Luftdurchsatz entsprechen. Der jeweilige Öffnungsquerschnitt ist dabei so bemessen, daß sich eine optimale Geräuschabsenkung in den kri­ tischen Betriebsbereichen ergibt. In block 103 , a large number of experimentally determined flap opening angles α DK of throttle valve 6 are stored, which correspond to an air flow rate determined for the respective operating range in the load and thrust mode of the test engine. The respective opening cross section is dimensioned so that there is an optimal noise reduction in the critical operating areas.

Das aktuell vorliegende korrigierte Lastsignal LK im Block 102 und die aktuell vorliegende Drehzahl n der Brennkraftmaschine 2 werden dann in das an einem Versuchsmotor ermittelte Kennfeld A im Block 103 gegeben und der zugehörige Wert aus dem gespei­ cherten Kennfeld entnommen und über den Ausgabeblock 104 das Druckmodulierventil 11 angesteuert.The current corrected load signal L K in block 102 and the current speed n of the internal combustion engine 2 are then given in the map A determined on a test engine in block 103 and the associated value is taken from the stored map and via the output block 104 the pressure modulating valve 11 controlled.

Claims (3)

1. Verfahren zur Steuerung des Öffnungsquerschnittes im An­ saugrohr einer luftverdichtenden Einspritzbrennkraftmaschine, insbesondere solche mit mechanischer Aufladung, bei welchem der durch eine Drosselklappe im Ansaugrohr gesteuerte Öffnungs­ querschnitt betriebsparameterabhängig verändert wird, wobei aktuell vorliegende Betriebsparameter dieser Brennkraftmaschine in einen Kennfeldspeicher eingelesen werden und die zugehörige Drosselklappenstellung aus dem gespeicherten Kennfeld zur Än­ derung des Öffnungsquerschnittes entnommen wird, dadurch gekennzeichnet, daß das Kennfeld durch geräuschminimierende Versuche bei ver­ schiedenen Drosselklappenstellungen an einer typgleichen Ver­ suchsbrennkraftmaschine ermittelt worden ist.1. Method for controlling the opening cross section in the intake manifold of an air-compressing injection internal combustion engine, in particular those with mechanical supercharging, in which the opening cross section controlled by a throttle valve in the intake manifold is changed as a function of the operating parameters, current operating parameters of this internal combustion engine being read into a map memory and the associated throttle valve position is removed from the stored map for changing the opening cross-section, characterized in that the map has been determined by noise-minimizing tests at different throttle valve positions on an identical search engine. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Betriebsparameter für die Drosselklappenstellungen die Drehzahl, Last und sonstige Betriebsparameter, wie Kühlwasser­ temperatur und Atmosphärendruck, ermittelt werden.2. The method according to claim 1, characterized, that as the operating parameter for the throttle valve positions Speed, load and other operating parameters such as cooling water temperature and atmospheric pressure. 3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, mit einem unterdruckbetriebenen Stellmotor zur Ver­ stellung der Drosselklappe und einem den Unterdruck in einer Saugleitung steuernden Ventil, dadurch gekennzeichnet, daß das Ventil als Druckmodulierventil (11) ausgebildet ist.3. A device for performing the method according to claim 1 or 2, with a vacuum-operated servo motor for adjusting the United throttle valve and a valve controlling the vacuum in a suction line, characterized in that the valve is designed as a pressure modulating valve ( 11 ).
DE4205266A 1992-02-21 1992-02-21 Controlling intake line cross=section in fuel injection engine - taking operating parameters into account, reading them from identification field memory, which has been established in tests Expired - Fee Related DE4205266C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4205266A DE4205266C1 (en) 1992-02-21 1992-02-21 Controlling intake line cross=section in fuel injection engine - taking operating parameters into account, reading them from identification field memory, which has been established in tests

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Application Number Priority Date Filing Date Title
DE4205266A DE4205266C1 (en) 1992-02-21 1992-02-21 Controlling intake line cross=section in fuel injection engine - taking operating parameters into account, reading them from identification field memory, which has been established in tests

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412735A1 (en) * 1993-04-13 1994-10-20 Unisia Jecs Corp Throttle valve control system
WO2004090308A1 (en) * 2003-04-09 2004-10-21 Toyota Jidosha Kabushiki Kaisha Throttle control in internal combustion engine for noise reduction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301319A1 (en) * 1982-01-18 1983-07-28 Toyota Jidosha K.K., Toyota, Aichi THROTTLE DEVICE FOR SUCTION AIR IN A DIESEL ENGINE
DE3500808A1 (en) * 1984-01-13 1985-07-18 Nippon Soken, Inc., Nishio, Aichi Device for controlling the intake air throttling and the fuel injection pressure in a diesel engine
DE3932420A1 (en) * 1989-09-28 1991-04-11 Daimler Benz Ag METHOD FOR ACTUATING A THROTTLE VALVE ARRANGED IN THE EXHAUST PIPE OF AN AIR COMPRESSING INTERNAL COMBUSTION ENGINE
DE4103870A1 (en) * 1990-02-09 1991-08-14 Mazda Motor IC engine with mechanically driven supercharger - has by=pass valves to control flow through supercharger and intercooler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301319A1 (en) * 1982-01-18 1983-07-28 Toyota Jidosha K.K., Toyota, Aichi THROTTLE DEVICE FOR SUCTION AIR IN A DIESEL ENGINE
DE3500808A1 (en) * 1984-01-13 1985-07-18 Nippon Soken, Inc., Nishio, Aichi Device for controlling the intake air throttling and the fuel injection pressure in a diesel engine
DE3932420A1 (en) * 1989-09-28 1991-04-11 Daimler Benz Ag METHOD FOR ACTUATING A THROTTLE VALVE ARRANGED IN THE EXHAUST PIPE OF AN AIR COMPRESSING INTERNAL COMBUSTION ENGINE
DE4103870A1 (en) * 1990-02-09 1991-08-14 Mazda Motor IC engine with mechanically driven supercharger - has by=pass valves to control flow through supercharger and intercooler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412735A1 (en) * 1993-04-13 1994-10-20 Unisia Jecs Corp Throttle valve control system
DE4412735C2 (en) * 1993-04-13 2000-03-09 Unisia Jecs Corp Throttle valve control system
WO2004090308A1 (en) * 2003-04-09 2004-10-21 Toyota Jidosha Kabushiki Kaisha Throttle control in internal combustion engine for noise reduction
US7191757B2 (en) 2003-04-09 2007-03-20 Toyota Jidosha Kabushiki Kaisha Throttle control in internal combustion engine for noise reduction
CN1761807B (en) * 2003-04-09 2010-04-07 丰田自动车株式会社 Throttle system used in internal combustion engine and method for controlling the throttle in internal combustion engine

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