EP0717182B1 - Throttle valve body for combustion engines - Google Patents

Throttle valve body for combustion engines Download PDF

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Publication number
EP0717182B1
EP0717182B1 EP95114347A EP95114347A EP0717182B1 EP 0717182 B1 EP0717182 B1 EP 0717182B1 EP 95114347 A EP95114347 A EP 95114347A EP 95114347 A EP95114347 A EP 95114347A EP 0717182 B1 EP0717182 B1 EP 0717182B1
Authority
EP
European Patent Office
Prior art keywords
throttle valve
gearwheel
gear
connection piece
combustion engines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95114347A
Other languages
German (de)
French (fr)
Other versions
EP0717182A2 (en
EP0717182B2 (en
EP0717182A3 (en
Inventor
Franz-Josef Schnelker
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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
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Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP0717182A2 publication Critical patent/EP0717182A2/en
Publication of EP0717182A3 publication Critical patent/EP0717182A3/en
Publication of EP0717182B1 publication Critical patent/EP0717182B1/en
Application granted granted Critical
Publication of EP0717182B2 publication Critical patent/EP0717182B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator

Definitions

  • the invention relates to a throttle valve assembly for internal combustion engines with a Electric motor drive according to the preamble of claim 1.
  • Such throttle body (DE-A1-41 42 809) are increasingly used for So-called e-gas system required, in which the throttle valve via electrical Control signals are controlled according to the desire of the engine operator, wherein the control signals at the throttle valve body against the commands of the engine operator modulated in terms of economy and pollutant reduction are.
  • Such throttle body are subject to a very strict quality and Functional check, since it concerns safety-relevant components.
  • One of the control lines is executed in which a control signal with the highest permissible Current is applied to the electric motor, so that the throttle valve with large Speed and large opening torque against a full load stop. This places the highest loads on the electric motor, the gearbox and the Throttle valve components.
  • the invention is therefore based on the object of measures to find with which a control is possible without the individual components to burden excessively, so that, where appropriate, a design of the components for this reduced Load is permissible and feasible.
  • a throttle valve assembly 1 for internal combustion engines, consisting of a housing 2 with intake duct 3, in which a throttle valve 4, which is arranged via a throttle valve shaft 5 with a toothed segment lever 6 engages in a transmission gear 7 which can be driven by an electric motor 8.
  • the transmission gear 7 consists of a journal-mounted double gear 9 whose larger gear 10 is driven by a pinion 11 of the electric motor 8 is and its smaller gear 12 cooperates with the toothed segment lever 6.
  • gear 10 on a fixed to the smaller gear 12 connected shaft journal 15 arranged as a gear shaft 14 is, a tolerance sleeve 16 as between the journal 15 and gear 10 Slip clutch 13 is arranged, which here consists of a corrugated spring band, as shown in Fig. 2 enlarged.
  • Such a tolerance sleeve 16 is used as a connecting element that has been tried and tested for many years used when given axial or radial forces are transmitted have to. Examples include: attachment of pulleys, fan wheels, Gears etc. Surprisingly, a tolerance sleeve can also be used as a slip clutch used, but this use in extensive experiments is to test the breakaway torque or the transferable maximum torque to be able to fix exactly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung betrifft einen Drosselklappenstutzen für Brennkraftmaschinen mit einem elektromotorischen Antrieb nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a throttle valve assembly for internal combustion engines with a Electric motor drive according to the preamble of claim 1.

Derartige Drosselklappenstutzen (DE-A1-41 42 809) werden zunehmend für ein sogenanntes E-Gas-System benötigt, bei dem die Drosselklappe über elektrische Steuersignale entsprechend dem Wunsch des Motorbetreibers gesteuert wird, wobei die Steuersignale an den Drosselklappenstutzen gegenüber den Befehlen des Motorbetreibers im Hinblick auf Wirtschaftlichkeit und Schadstoffreduzierung moduliert sind.Such throttle body (DE-A1-41 42 809) are increasingly used for So-called e-gas system required, in which the throttle valve via electrical Control signals are controlled according to the desire of the engine operator, wherein the control signals at the throttle valve body against the commands of the engine operator modulated in terms of economy and pollutant reduction are.

Derartige Drosselklappenstutzen unterliegen einer sehr strengen Qualitäts- und Funktionskontrolle, da es sich um sicherheitsrelevante Bauteile handelt.Such throttle body are subject to a very strict quality and Functional check, since it concerns safety-relevant components.

Eine der Kontrolllen wird ausgeführt, in dem ein Steuersignal mit höchstzulässiger Bestromung an den Elektromotor angelegt wird, so daß die Drosselklappe mit großer Geschwindigkeit und großem Öffnungsmoment gegen einen Vollastanschlag fährt. Hierbei treten höchste Belastungen des Elektromotors, des Getriebes und der Drosselklappenbauteile auf.One of the control lines is executed in which a control signal with the highest permissible Current is applied to the electric motor, so that the throttle valve with large Speed and large opening torque against a full load stop. This places the highest loads on the electric motor, the gearbox and the Throttle valve components.

Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, Maßnahmen aufzufinden, mit denen eine Kontrolle möglich wird, ohne die einzelnen Bauteile übermäßig zu belasten, so daß ggf. eine Auslegung der Bauteile für diese verminderte Belastung zulässig und durchführbar ist.Proceeding from this, the invention is therefore based on the object of measures to find with which a control is possible without the individual components to burden excessively, so that, where appropriate, a design of the components for this reduced Load is permissible and feasible.

Diese Aufgabe ist durch die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Weiterbildungen sind mit den Unteransprüchen angegeben.This object is indicated by the characterizing part of claim 1 Features resolved. Advantageous further developments are specified in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist schematisch in der Zeichnung dargestellt und wird nachfolgend beschrieben. An embodiment of the invention is shown schematically in the drawing and is described below.

Diese zeigt:

  • Fig. 1
    einen Längsschnitt eines Drosselklappenstutzens;
  • Fig. 2
    eine Einzelheit aus Fig. 1.
    • This shows:
  • Fig. 1
    a longitudinal section of a throttle valve assembly;
  • Fig. 2
    a detail from Fig. 1st

    • Fig. 1 zeigt einen Längsschnitt eines Drosselklappenstutzens 1 für Brennkraftmaschinen, bestehend aus einem Gehäuse 2 mit Ansaugkanal 3, in dem eine Drosselklappe 4 angeordnet ist, die über eine Drosselklappenwelle 5 mit einem Zahnsegmenthebel 6 in ein Übersetzungsgetriebe 7 eingreift, das von einem Elektromotor 8 antreibbar ist. Das Übersetzungsgetriebe 7 besteht aus einem zapfengelagerten Doppelzahnrad 9, dessen größeres Zahnrad 10 von einem Ritzel 11 des Elektromotors 8 angetrieben wird und dessen kleineres Zahnrad 12 mit dem Zahnsegmenthebel 6 zusammenwirkt.1 shows a longitudinal section of a throttle valve assembly 1 for internal combustion engines, consisting of a housing 2 with intake duct 3, in which a throttle valve 4, which is arranged via a throttle valve shaft 5 with a toothed segment lever 6 engages in a transmission gear 7 which can be driven by an electric motor 8. The transmission gear 7 consists of a journal-mounted double gear 9 whose larger gear 10 is driven by a pinion 11 of the electric motor 8 is and its smaller gear 12 cooperates with the toothed segment lever 6.

    Es ist nun erfindungsgemäß vorgesehen, daß das Übersetzungsgetriebe 7 den Antriebsstrang Elektromotor 8 - Drosselklappe 4 bei Überschreitung eines vorgegebenen Motordrehmoments durch Schlupf unterbricht. Zu diesem Zweck ist eines der Zahnräder 10, 12, hier das größere Zahnrad 10, über eine Rutschkupplung 13 mit einer Getriebewelle 14 verbunden.It is now provided according to the invention that the transmission gear 7 Drive train electric motor 8 - throttle valve 4 when a predetermined value is exceeded Motor torque interrupted by slip. For this purpose, one of the Gears 10, 12, here the larger gear 10, via a slip clutch 13 a gear shaft 14 connected.

    Vorteilhafterweise ist vorgesehen, daß das Zahnrad 10 auf einem fest mit dem kleineren Zahnrad 12 verbundenen Wellenzapfen 15 als Getriebewelle 14 angeordnet ist, wobei zwischen Wellenzapfen 15 und Zahnrad 10 eine Toleranzhülse 16 als Rutschkupplung 13 angeordnet ist, die hier aus einem gewellten Federband besteht, wie in Fig. 2 vergrößert dargestellt ist.It is advantageously provided that the gear 10 on a fixed to the smaller gear 12 connected shaft journal 15 arranged as a gear shaft 14 is, a tolerance sleeve 16 as between the journal 15 and gear 10 Slip clutch 13 is arranged, which here consists of a corrugated spring band, as shown in Fig. 2 enlarged.

    Eine solche Toleranzhülse 16 wird als ein seit vielen Jahren bewährtes Verbindungselement eingesetzt, wenn gegebene Axial- oder Radialkräfte übertragen werden müssen. Als Beispiele seien genannt: Befestigung von Riemenscheiben, Lüfterrädern, Zahnräder usw. Überraschenderweise läßt sich eine Toleranzhülse auch als Rutschkupplung verwendet, wobei dieser Einsatz jedoch in ausführlichen Versuchen zu erproben ist, um das Losbrechmoment bzw. das übertragbare Höchstdrehmonent genau fixieren zu können. Such a tolerance sleeve 16 is used as a connecting element that has been tried and tested for many years used when given axial or radial forces are transmitted have to. Examples include: attachment of pulleys, fan wheels, Gears etc. Surprisingly, a tolerance sleeve can also be used as a slip clutch used, but this use in extensive experiments is to test the breakaway torque or the transferable maximum torque to be able to fix exactly.

    Mit der Verwendung der Toleranzhülse 16 als Rutschkupplung 13 sind wesentliche Vorteile technischer und wirtschaftlicher Art zu erreichen:

    • kostengünstige, schnelle Montage
    • größere Toleranzen der zu verbindenden Teile
    • berechenbare Drehmomentübertragung.
    With the use of the tolerance sleeve 16 as a slip clutch 13, significant advantages of a technical and economical nature can be achieved:
    • inexpensive, quick installation
    • greater tolerances of the parts to be connected
    • predictable torque transmission.

    Insgesamt läßt sich damit eine Funktionsverbesserung bei Drosselklappenstutzen erreichen und eine Bauraum- und Kostenreduzierung.Overall, this can improve the function of throttle valve bodies achieve and a space and cost reduction.

    Claims (4)

    1. Throttle valve connection piece for internal combustion engines having an electromotive drive, wherein the drive acts via a gear upon the throttle valve, characterized in that the speed-transforming gear (7) by means of slip interrupts the drive train between electric motor (8) and throttle valve (4) when a preset motor torque is exceeded.
    2. Throttle valve connection piece according to claim 1, characterized in that a gearwheel (10 or 12) is connected by a slipping clutch (13) to a gear shaft (14).
    3. Throttle valve connection piece according to claim 2, characterized in that the gearwheel (10) is designed as the larger gearwheel of a twin gearwheel (9) and is disposed on a shaft journal (15), which is firmly connected to the smaller gearwheel (12), wherein a tolerance sleeve (16) is disposed between shaft journal (15) and gearwheel (10).
    4. Throttle valve connection piece according to claim 3, characterized in that the tolerance sleeve (16) comprises a corrugated spring strip.
    EP95114347A 1994-12-14 1995-09-13 Throttle valve body for combustion engines Expired - Lifetime EP0717182B2 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4444534A DE4444534A1 (en) 1994-12-14 1994-12-14 Throttle body for internal combustion engines
    DE4444534 1994-12-14

    Publications (4)

    Publication Number Publication Date
    EP0717182A2 EP0717182A2 (en) 1996-06-19
    EP0717182A3 EP0717182A3 (en) 1998-07-15
    EP0717182B1 true EP0717182B1 (en) 2001-06-13
    EP0717182B2 EP0717182B2 (en) 2004-10-06

    Family

    ID=6535797

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95114347A Expired - Lifetime EP0717182B2 (en) 1994-12-14 1995-09-13 Throttle valve body for combustion engines

    Country Status (3)

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    EP (1) EP0717182B2 (en)
    DE (2) DE4444534A1 (en)
    ES (1) ES2157278T5 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10137026A1 (en) * 2001-07-30 2003-02-20 Siemens Ag Drive device for setting drive has intermediate gear composed of pinion and gear wheel
    DE102004006292A1 (en) * 2004-02-09 2005-08-25 Siemens Ag Servo drive, comprising specifically arranged components and cup spring for avoidance of power transmission in case of blocking

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3228210A (en) * 1964-02-06 1966-01-11 Collins Radio Co Bi-directional overload clutch
    US3802222A (en) * 1972-08-30 1974-04-09 Black & Decker Mfg Co Torque-responsive clutch for hedge trimmers and the like
    US4452201A (en) * 1983-05-25 1984-06-05 Chrysler Corporation Automatic idle speed actuator valve
    US4656407A (en) * 1985-06-14 1987-04-07 A.R.A. Manufacturing Company Of Delware, Inc. Electric motor servo control system and method

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3411393A1 (en) * 1984-03-28 1985-10-10 Robert Bosch Gmbh, 7000 Stuttgart Electric angular resolver
    JPH04179836A (en) * 1990-11-14 1992-06-26 Hitachi Ltd Electronically-controlled throttle device
    JP2864746B2 (en) 1990-12-26 1999-03-08 アイシン精機株式会社 Throttle control device

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3228210A (en) * 1964-02-06 1966-01-11 Collins Radio Co Bi-directional overload clutch
    US3802222A (en) * 1972-08-30 1974-04-09 Black & Decker Mfg Co Torque-responsive clutch for hedge trimmers and the like
    US4452201A (en) * 1983-05-25 1984-06-05 Chrysler Corporation Automatic idle speed actuator valve
    US4656407A (en) * 1985-06-14 1987-04-07 A.R.A. Manufacturing Company Of Delware, Inc. Electric motor servo control system and method

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    Dubbel, Taschenbuch für den Maschinenbau, 15. Auflage, 1983, Seite 413; Springer-Verlag *

    Also Published As

    Publication number Publication date
    DE59509339D1 (en) 2001-07-19
    ES2157278T5 (en) 2005-05-01
    EP0717182A2 (en) 1996-06-19
    ES2157278T3 (en) 2001-08-16
    EP0717182B2 (en) 2004-10-06
    DE4444534A1 (en) 1996-06-20
    EP0717182A3 (en) 1998-07-15

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