EP0454971B1 - Positionneur de butée pour papillon des gaz - Google Patents

Positionneur de butée pour papillon des gaz Download PDF

Info

Publication number
EP0454971B1
EP0454971B1 EP91103586A EP91103586A EP0454971B1 EP 0454971 B1 EP0454971 B1 EP 0454971B1 EP 91103586 A EP91103586 A EP 91103586A EP 91103586 A EP91103586 A EP 91103586A EP 0454971 B1 EP0454971 B1 EP 0454971B1
Authority
EP
European Patent Office
Prior art keywords
throttle valve
stop
stop positioner
extension
swivelling part
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
EP91103586A
Other languages
German (de)
English (en)
Other versions
EP0454971A1 (fr
Inventor
Josef Büchl
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP0454971A1 publication Critical patent/EP0454971A1/fr
Application granted granted Critical
Publication of EP0454971B1 publication Critical patent/EP0454971B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D11/00Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06Arrangements 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
    • F02D11/10Arrangements 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
    • F02D11/107Safety-related aspects

Definitions

  • the invention relates to a stop actuator, as is known from the unpublished European patent application EP-A-389649.
  • This stop plate has a first stage for normal operation and a second stage for emergency operation. In this known device, a functional check of the stop actuator is not possible.
  • the object of the invention is to provide a generic stop actuator, the proper functioning of which can be checked during operation.
  • An essential function of the invention can be seen in the fact that the driver of a motor vehicle, in which a throttle valve with the stop actuator according to the invention is used, does not feel at all during operation that the function of the stop actuator is checked continuously or at intervals.
  • the reference numeral 10 denotes a throttle valve.
  • the unpublished European patent application EP-A-389649 describes a throttle valve control to solve the task, in which the throttle valve is not closed by the cable, but the throttle cable only closes up to an angle of approximately 10 °, the remaining angular range between 0 and 10 ° is adjusted by the electric motor.
  • the haptic accelerator feel is affected by a change in the force line of the actuation. This is changed by the measures proposed in the invention.
  • the invention provides that the stop actuator for limiting the mechanical closure of the throttle valve is assigned directly to the component actuated by the throttle cable.
  • the reference numeral 10 denotes a throttle valve which is installed in an intake manifold of an internal combustion engine, which in the illustration provided here should run vertically.
  • the throttle valve 10 is shown in the closed state, it can be pivoted about a shaft 12, a pivoting in the direction of arrow 100 moving the throttle valve 10 into its open position would bring.
  • the shaft 12 is bent at one end at an angle to a radial extension 16 which is positively connected in terms of movement to the throttle valve 10, in the continuation of its axis 14 the shaft of an actuating element 18 is provided coaxially, which has a drive lever 22 and an output lever 28.
  • the pivoting of the actuating part 18 is set via the drive lever 22, the output lever 28 transmits this pivoting in a manner to be described to the extension 16 which is positively connected in terms of movement to the throttle valve 10.
  • the drive lever 22 or, as shown here, the output lever 28 continues to engage a return spring 24, the other end of which is articulated at point 26 on the housing side, this return spring 24, which is designed as a double spring for safety reasons, acts on the throttle valve 10 in its closed position.
  • the output lever 28 has a driving pin 30 which runs parallel to the axis 14 and is in contact with the extension 16.
  • a stop spring 32 biases the throttle valve 10 into its open position and thus the extension 16 into its contact position with the driver pin 30 of the actuator 18. It is essential that the spring 32 has a smaller spring force characteristic than the return spring 24, that is, it is softer.
  • the spring 32 can connect the extension 16 directly to the output lever, but it can also, as shown in the drawing, exert a torque on the axis 12 with one end and be firmly articulated on the motor side with its other end 80.
  • An extension 50 of the output lever 28 of the control part 18 has at its end 58 an adjustable stop screw 82 which comes into contact with a stop limiter 54 and thus the pivoting of the control part 18 limited in the closed position of the throttle valve 10.
  • the adjusting lever 18 is rotated in the direction of the open position of the throttle valve 10, that is to say in the direction of rotation of the arrow 100, by a pivoting part 60 which can be pivoted by actuating a cable 20 which is connected to an accelerator pedal, not shown.
  • the shaft 12 of the throttle valve 10 the axis of rotation of the actuating part 18 and the axis of rotation of the pivoting part 60 are aligned coaxially with one another.
  • a counter arm which is designed as an actuating lever 64, can be pivoted about this axis 14 with the aid of a cable lever 62 which is engaged by the cable 20.
  • the actuating lever 64 has a driver 66 which presses on one side of the drive lever 22 of the actuating part 18 and thus moves this actuating part 18 in the direction of the open position.
  • a return spring 70 is provided which ensures that when the accelerator pedal is not actuated and thus when the cable 20 is loose, the pivoting part 60 is moved into its zero position.
  • a setpoint generator 72 which, as a sensor, emits an electrical signal which is representative of the load request as generated by the driver when the accelerator pedal is actuated.
  • the servomotor 42 is controlled by electronics. This can be a slip control, for example.
  • the control electronics continue to take consumption-optimized characteristics into account, according to which the electric motor 42 can be controlled to open or close the throttle valve 10. Measures for damping the load change shock when the throttle valve 10 suddenly opens can also be taken into account here.
  • the throttle valve 10 In order to counteract sudden slippage, a load change or an excessive consumption, the throttle valve 10 should be acted on in the direction of its closed position.
  • the electric motor 42 is activated.
  • a driver 38 presses on a radial pin 36 and rotates the shaft 12 in the opposite direction to the arrow 100.
  • the extension 16 at the attachment point 88 disengages from the driver pin 30 of the actuating element 18, the spring 32 is stressed counter to its direction of action and the throttle valve closed by the amount specified by the electronic logic.
  • An actual value transmitter 68 which determines the actual degree of closure of the throttle valve 10, is assigned to either the shaft 12 or the shaft 40 and provides a value for the actual degree of throttle valve opening.
  • the adjusting lever 64 has at its end distal to the axis an extension 90 which comes to rest against a stop 94 when the accelerator pedal is not actuated, this position corresponds to an open position of the throttle valve of approximately 10 °.
  • the stop 94 can be formed by a pin which can be extended or retracted by an electromagnet 92 and which is extended when the electromagnet 92 is not energized.
  • the pin has two steps 96 and 98, the step 96 being the step which normally forms the attachment point for the extension 90.
  • the pin is half-drawn in and the extension 90 comes into contact with the stage 98.
  • the swivel part 60 By pulling on the accelerator pedal 20, the swivel part 60 is rotated about its axis and presses via the driver 66 in the stop 52 onto the drive lever 22 of the actuating part 18. which is predetermined by the pivoting of the pivot member 60, z. B. when activating a cruise control system is possible, in this case the drive lever 22 would no longer come into contact with the driver 66 of the pivoting part 60 at point 52.
  • the pivotal movement of the actuator 18 is transmitted via the driver pin 30 of the actuator 18 to the extension 16 which is connected to the shaft 12 of the throttle valve 10, since the spring 32 presses the extension 16 into contact with the driver pin 30 as long as no further forces Influence throttle valve 10.
  • the maximum opening angle of the throttle valve 10 is predetermined, whereas the throttle valve 10 can close against the arrow direction 100 as long as the closing force overcomes the spring constant of the spring 32.
  • the closing of the throttle valve between the maximum opening degree, which is predetermined by the position of the gas cable 20 and the completely closed position, is set by the servomotor 42.
  • the parameters for controlling the motor 42 are determined by correspondingly predetermined parameters stored in memories as well as by vehicle operating parameters (speed, speed, accelerator pedal characteristics and the like) and the values which the transmitters 68 and 72 deliver, namely 68 for the actual position of the throttle valve 10 and 72 for the target position of the throttle valve 10, as is specified via the load request, which is determined by the accelerator pedal.
  • the setpoint potentiometer 72 provides the controller with the information that the accelerator pedal is not actuated, as a result of which the corresponding idle setting takes place, which is controlled by the electric motor 42. In this range between 0 and 10 °, the exact position of the throttle valve 10 is thus triggered by the control of the electric motor 42.
  • the lower value for the opening angle set with the stop pin 58 when the pin 96 is retracted is selected so that the necessary scope for emergency operation is available. In the event of a defect, the vehicle can still be operated.
  • the electromagnet housed in the housing 92 is not energized and has completely extended the bolt 94, so that the extension 90 comes to a first stop surface 96, which adjusts the mechanically predetermined minimum opening angle of the throttle valve in a corresponding manner.
  • the second setting option is that the pin 94 is partially retracted, this is advantageously done in that the electromagnet 92 is not fully excited to retract the bolt 94 completely, but is excited with a lower current, so that the bolt 94 is only partially retracted.
  • the bolt 94 has a shoulder 102 at its end, so that a stop surface 98 adjoins the stop surface 96, which is offset with respect to the surface 96 and enables a further pivoting of the extension 90 in the direction of the closed position of the throttle valve 100 while idling.
  • a third position is defined by the fact that the bolt 94 is fully retracted by the electromagnet in the housing 92 being excited, in which case no stop is defined for the extension 90 at all, the extent of the pivoting in the direction of the closed position of the throttle valve is accordingly determined by the Stop screw 82 determined.
  • the function of the stop actuator during operation of the throttle valve is as follows: In normal operation, if no error can be found, is the bolt 94 fully extended, the stop 96 is effective and limits the extent of rotation of the rope pulley in the direction of the closed position of the throttle valve by the extension 90.
  • the potentiometer 72 detects the angular position of the sheave.
  • the function of the stop actuator is to be checked at regular intervals under certain operating conditions; the second stop 98 is used for this purpose. If the operation ensures that the extension 90 is not in contact with the stop surface 96, since the driver of the vehicle holds the accelerator pedal depressed , the pin 94 can be pulled in half so that the stop surface 98 takes effect. The next time the accelerator pedal is released, the extension 90 can pivot further toward the closed position of the throttle valve than is possible in normal operation, which the potentiometer 72 detects. This gives the feedback that the bolt 94 could be retracted. This has no influence on the function of the vehicle, since in normal operation the idle control is controlled by the electric motor 42 anyway.
  • the bolt 94 can be extended again and normal operation can be maintained .
  • This checking position can be carried out at regular time intervals, or also under certain operating conditions, for example during each switching operation in which the accelerator pedal is not operated briefly.
  • the extension 90 can pivot further towards the closed position of the throttle valve so that the stop actuator 58 can come into effect.
  • This can be achieved either by a third step in the bolt 54, which allows the extension 90 to be pivoted so far, or advantageously, as shown in the drawing, by the lack of a third stop surface, so that a further pivoting in the direction of the closed position is possible, as long as the stop 58 does not limit the further closing movement.

Landscapes

  • 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)

Claims (3)

  1. Positionneur de butée (92) adjoint à un papillon des gaz (10) qui est commandé au moyen d'un organe d'entraînement auxiliaire (42) conformément aux données prédéterminées transmises mécaniquement, définies par la position d'un accélérateur dont le mouvement est transmis par une commande par câble (20) qui agit sur un élément pivotant (60), le positionneur de butée (92), qui coopère avec la transmission mécanique, étant adjoint à l'élément pivotant (60), dont il limite la position d'ouverture minimale dans le sens de la fermeture du papillon des gaz (10), et étant adjoint à la transmission mécanique d'un détecteur de valeur de consigne (72) qui transmet au moyen d'excitation de l'organe d'entraînement auxiliaire (42) la valeur de consigne qui peut y être prédéfinie par la position de l'élément pivotant (60), le positionneur de butée (92) définissant trois états, dont le premier représente une position normale pour la position d'ouverture minimale de l'élément pivotant (60), le second représente une position de marche en cas d'urgence, dans laquelle la position d'ouverture minimale de l'élément pivotant (60) est déplacée davantage dans le sens de la fermeture du papillon des gaz, et le troisième représente une position d'essai pour la vérification du fonctionnement du positionneur de butée.
  2. Positionneur de butée selon la revendication 1, caractérisé en ce qu'il comporte un électro-aimant qui fait sortir une broche (94) qui limite le mouvement de l'élément pivotant (60) dans le sens de la fermeture du papillon des gaz.
  3. Positionneur de butée selon la revendication 1 ou 2, caractérisé en ce qu'un seul trajet du courant est utilisé pour l'excitation du positionneur de butée, et en ce que les différents états du positionneur de butée sont réglés par commande de l'intensité du courant.
EP91103586A 1990-04-06 1991-03-08 Positionneur de butée pour papillon des gaz Expired - Lifetime EP0454971B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4011183A DE4011183A1 (de) 1990-04-06 1990-04-06 Anschlagsteller
DE4011183 1990-04-06

Publications (2)

Publication Number Publication Date
EP0454971A1 EP0454971A1 (fr) 1991-11-06
EP0454971B1 true EP0454971B1 (fr) 1994-11-23

Family

ID=6403918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103586A Expired - Lifetime EP0454971B1 (fr) 1990-04-06 1991-03-08 Positionneur de butée pour papillon des gaz

Country Status (2)

Country Link
EP (1) EP0454971B1 (fr)
DE (2) DE4011183A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524911A1 (de) * 1985-07-12 1987-01-15 Vdo Schindling Einrichtung zur regelung der leerlaufdrehzahl eines ottomotors, insbesondere in einem kraftfahrzeug
DE3843147A1 (de) * 1988-12-22 1990-06-28 Vdo Schindling Stelleinrichtung fuer eine zumesseinrichtung einer brennkraftmaschine

Also Published As

Publication number Publication date
EP0454971A1 (fr) 1991-11-06
DE4011183A1 (de) 1991-10-10
DE59103563D1 (de) 1995-01-05

Similar Documents

Publication Publication Date Title
EP0389649B1 (fr) Papillon d'accélérateur
DE4430510A1 (de) Drosselvorrichtung für einen Verbrennungsmotor
DE4011182A1 (de) Drosselklappe
DE60122084T2 (de) Pannensicheres Verfahren und System für Brennkraftmaschinen
DE3831257A1 (de) Einrichtung zur steuerung des oeffnungsgrades eines drosselventils an einem fahrzeugmotor
EP0412237B1 (fr) Papillon
DE4441155A1 (de) Drosselklappen-Regelvorrichtung
DE4027066A1 (de) Vorrichtung zur regelung einer motorbetriebenen kraftfahrzeug-drosselklappe
DE4142809C2 (de) Drosselklappen-Regelvorrichtung
EP0269780B1 (fr) Dispositif de transmission de la position d'un élément de commande actionnable par le conducteur d'un véhicule
EP0558802B1 (fr) Dispositif de commande de papillon
DE19812944A1 (de) Fahrsteuereinrichtung für den Motor eines Fahrzeugs
EP0483448B1 (fr) Dispositif de réglage de charge
DE3711779A1 (de) Drosselklappe
EP0378737B1 (fr) Dispositif de réglage de la charge
DE4222457C2 (de) Gerät zum Steuern des Öffnungswinkels eines Drosselventils bei einem Motor mit innerer Verbrennung
EP0378736B1 (fr) Dispositif de réglage de la charge
EP0454971B1 (fr) Positionneur de butée pour papillon des gaz
EP0456904B1 (fr) Dispositif de réglage de la puissance
EP1352772A2 (fr) Dispositif pour le contrôle de la vitesse d'un véhicule automobile
DE4221768C2 (de) Verfahren und Vorrichtung zur Steuerung einer Verstelleinrichtung in einem Fahrzeug
EP0488016B1 (fr) Dispositif de commande de la puissance d'un moteur à combustion interne notamment pour véhicule automobile
EP0478884B1 (fr) Dispositif de réglage de charge
EP0540811B1 (fr) Dispositif pour le positionnement d'un clapet d'étranglement
DE4342754A1 (de) Vorrichtung zum Steuern der Leistung einer Antriebsmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19911129

17Q First examination report despatched

Effective date: 19930504

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941206

REF Corresponds to:

Ref document number: 59103563

Country of ref document: DE

Date of ref document: 19950105

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040305

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050308

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050316

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060308

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060331

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060308

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070308