EP1479891B1 - Dispositif pour actionner une vanne à papillon - Google Patents

Dispositif pour actionner une vanne à papillon Download PDF

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Publication number
EP1479891B1
EP1479891B1 EP20040010806 EP04010806A EP1479891B1 EP 1479891 B1 EP1479891 B1 EP 1479891B1 EP 20040010806 EP20040010806 EP 20040010806 EP 04010806 A EP04010806 A EP 04010806A EP 1479891 B1 EP1479891 B1 EP 1479891B1
Authority
EP
European Patent Office
Prior art keywords
throttle valve
load range
cam plate
rotation
throttle
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
EP20040010806
Other languages
German (de)
English (en)
Other versions
EP1479891A3 (fr
EP1479891A2 (fr
Inventor
Martin Spickermann
Berndt Röhrig
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1479891A2 publication Critical patent/EP1479891A2/fr
Publication of EP1479891A3 publication Critical patent/EP1479891A3/fr
Application granted granted Critical
Publication of EP1479891B1 publication Critical patent/EP1479891B1/fr
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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/12—External control gear, e.g. having dash-pots
    • 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
    • F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
    • 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
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • 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
    • F02D2009/0261—Arrangements; Control features; Details thereof having a specially shaped transmission member, e.g. a cam, specially toothed gears, with a clutch

Definitions

  • the invention relates to a device for actuating at least one throttle valve with an actuating device, such as throttle grip, at least one with this kinematically coupled, pivotable via an operating angle and a throttle in the transmission path between actuator and throttle (s) arranged translation device for generating a progressive transmission behavior at least in one lower load range.
  • an actuating device such as throttle grip
  • DE 34 03 760 A1 suggests a throttle actuator with a progressive transmission behavior, wherein actuated by means of an actuator cable with a pulley, the lateral surface distance to the pivot axis decreases with increasing opening angle of the throttle corresponds, so that with increasing opening angle of the throttle, the cable with a decreasing lever arm attacks.
  • a device for actuating a throttle valve according to the preamble of claim 1 is known from GB 1 133 721.
  • the invention is therefore based on the object to provide a device for actuating at least one throttle valve, which enables a particularly optimized in terms of friction and wear motion transmission between an actuator and a throttle valve at the same time particularly progressive transmission behavior.
  • the cam has a contour associated with the cable, which has a decreasing distance to its fulcrum, so that upon actuation from a neutral position over the lower load range in the direction of a middle and upper load range, a decreasing radius is effective.
  • a further progression can be generated.
  • the axis of rotation of the cam is arranged eccentrically with a distance to the throttle shaft axis of rotation, whereby upon rotation of the cam and entrainment of the lever element, a displacement of the contact point along the cam contour occurs.
  • the transmission ratio does not increase further when actuated beyond the predetermined opening angle.
  • a transfer function which represents the relationship between cable travel and throttle opening angle, a relatively flat course in the lower load range, a middle region with a high progression and a relatively steep curve in the upper load range.
  • a device for adjusting the clearance between the cam contour and lever element for example, designed as a stop screw, is provided.
  • FIG. 1 shows a device 100 for actuating a throttle valve of an internal combustion engine not shown here in detail by means of a throttle grip 102.
  • a throttle grip 102 is tubular section, cylindrical and is arranged rotatably about its longitudinal axis at the outer end of a link.
  • the throttle grip 102 is held in a neutral position corresponding to a non-actuated position restoring force against a stop. An actuation takes place by a rotation of the throttle grip 102 against the restoring force.
  • a pulley 104 is connected, which circumferentially receives the end of a cable 106 and is rotatable together with the throttle grip 102.
  • the return force is applied by one or more springs such as 124, which on the throttle grip, on the cam 108 and / or on the throttle Act.
  • the spring 124 is illustrated schematically and by way of example as a tension-loaded spiral spring, but it is of course also possible for a design to be in the form of a torsion spring.
  • the cable 106 is connected to the cam 108 and is located on the associated contour 110 at.
  • the cam 108 is rotated about its axis of rotation 122 in the direction of arrow a, wherein the cable 102 unwinds and due to the direction of the arrow a from R 1 to R 2 decreasing radius of the contour 110 to the axis of rotation 122 a shorter lever is effective, so that a progressive transmission behavior is achieved.
  • the cam 108 is connected to a lever element 114 in connection, which in turn is rotatably connected to the throttle valve shaft 120 and end a pin with a roller 116, preferably made of plastic.
  • the end of the lever member 114 may alternatively be without roller, with the contour 112 in sliding contact, formed.
  • the lever element 114 Upon further rotation of the cam 108 in the direction of arrow a, the lever element 114 is substantially without further relative movement between cam 108 and lever member 114 taken so that from a predetermined angle of rotation at least approximately a constant ratio of 1: 1 between cam 108 and lever member 114 is reached in the direction of larger throttle opening angle.
  • FIG. Analogous to Figure 1 a throttle grip 202 is connected by means of a cable 206 with a cam 208 which has a contour associated therewith 210 for progressive transmission of motion.
  • a cam 208 which has a contour associated therewith 210 for progressive transmission of motion.
  • the contour 212 follows only the initial direction of the arrow b, is strongly curved and the end directed against the direction of arrow b, so that a progressive conversion of the throttle opening movement is achieved not only up to a gear ratio of 1: 1, but beyond a speed-up.
  • the contour 212 is, in order to ensure proper functioning, for example, even in the event of damage or failure of a return spring such as 224, formed as a closed gate.
  • the - usually necessary but undesirable - progression generated with the contour 210 can be reduced, but the overall progressive gear ratio between the throttle grip 202 and the throttle valve can be maintained.
  • the throttle valve from idle stop to the full load stop according to an angle of about 85 °, usually be pivoted.
  • stop screws 226, 228 are provided, wherein the stop screw 226 is provided in a known manner as an idle stop for the throttle / -nwelle, while the stop screw 228 is used to adjust the stop position of the cam 208.
  • the stop position of the cam 208 is selected so that the contour 212 and the pin with roller 216, which incidentally also without roller, with the contour 212 in sliding contact, may be formed, at least approximately free of play.
  • throttle valve serves (serve) to control the (the) in the (the) cylinder inflowing gas volume, wherein an admixing of the fuel, for example by intake manifold injection takes place.
  • Figure 3 shows in a diagram 300 the relationship between the path of the cable 106, 206 and the opening angle of the throttle (s), wherein the ordinate 304, the cable path and the abscissa 306, the throttle opening angle is plotted.
  • the curved curve 302 shows the progressive overall transmission behavior, which is largely determined by the contours 110, 210 and 112, 212 and the axial offset e (FIG. 1). Starting from the neutral position, a translation of the movement into the slow, whereby a particularly good dosing is achieved by a relatively low actuation of the throttle valve (s) takes place upon actuation of the throttle grip 102, 202.
  • the gear ratio changes in the direction of a ratio of 1: 1 - in the embodiment of Figure 2 to a translation into fast - so that an actuation of the Throttle handle 102, 202 an increasingly greater operation of the throttle (s) conditionally and ultimately with fully actuated throttle grip 102, 202, the throttle valve (s) is fully open (are).
  • Recognizable is the relatively flat curve in the lower region d to about 30-35% of the cable path, a middle range e between about 30-35% and 60-70% Seilweg, in which the curve 302 has a high progression and a relative steep curve in the upper area f from approx. 60-70% rope way.

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)
  • Harvester Elements (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (7)

  1. Dispositif pour actionner au moins un volet d'étranglement comprenant :
    - un dispositif d'actionnement (102) tel qu'une poignée tournante d'accélérateur,
    - au moins un volet d'étranglement couplé cinétiquement à celui-ci et pivotant sur un angle d'actionnement, et
    - un dispositif de démultiplication (100, 200) sur le trajet de transmission entre le dispositif d'actionnement (102) et le(s) volet(s) d'étranglement pour générer une caractéristique de transmission progressive au moins dans une plage de charge inférieure,
    - le dispositif de démultiplication (100, 200) comprenant un élément de levier (114, 214) relié au volet ainsi qu'une came (108, 208) coopérant avec celui-ci et actionnée par le dispositif d'actionnement,
    - la came (108, 208) étant reliée au dispositif d'actionnement (102, 202) au moyen d'un câble de traction (106, 206) et
    - la came (108, 208) présentant un premier contour (112, 212) coopérant avec l'élément de levier (114, 214) dont la distance par rapport à son axe de rotation (122, 222) augmente de sorte que lors d'un actionnement, à partir d'une position de ralenti le rayon (R3) augmente sur la plage de charge inférieure en direction d'une plage de charge moyenne et supérieure,
    caractérisé en ce que
    la came présente un deuxième contour (110, 210) associé au câble (106, 206) dont la distance décroît par rapport à son axe de rotation (122, 222) de sorte que lors d'un actionnement à partir d'une position de ralenti le rayon actif décroisse (R1, R2) sur la plage de charge inférieure en direction d'une plage de charge moyenne et supérieure.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'axe de rotation (122, 222) de la came (108, 208) est excentré de la distance (e) par rapport à l'axe de rotation de l'axe (120) du volet d'étranglement.
  3. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    lors d'un actionnement à partir de la position de ralenti, la rotation de la came (108, 208) étant transmise démultipliée au volet d'étranglement, le rapport de démultiplication augmente sur la plage de charge inférieure en direction de la plage de charge moyenne et supérieure et pour un angle d'ouverture prédéterminé on a une démultiplication d'au moins approximativement 1 : 1.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    lors d'un actionnement au-delà de l'angle d'ouverture prédéterminé le rapport de démultiplication n'augmente plus.
  5. Dispositif selon la revendication 3,
    caractérisé en ce que
    lors d'un actionnement au-delà de l'angle d'ouverture prédéterminé, le rapport de démultiplication continue à augmenter de sorte que la multiplication arrive dans la plage rapide.
  6. Dispositif selon l'une quelconque des revendications 3 à 5,
    caractérisé par
    une fonction de transmission (302) ayant une évolution relativement plate dans la plage de charge inférieure (d), une plage centrale (e) avec une forte progression ainsi qu'une évolution relativement raide dans la plage de charge supérieure (f).
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par
    un dispositif (228) pour régler le jeu entre le contour de came (112, 212) et l'élément de levier (114, 214).
EP20040010806 2003-05-22 2004-05-04 Dispositif pour actionner une vanne à papillon Expired - Fee Related EP1479891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003123121 DE10323121A1 (de) 2003-05-22 2003-05-22 Einrichtung zur Betätigung wenigstens einer Drosselklappe
DE10323121 2003-05-22

Publications (3)

Publication Number Publication Date
EP1479891A2 EP1479891A2 (fr) 2004-11-24
EP1479891A3 EP1479891A3 (fr) 2004-12-22
EP1479891B1 true EP1479891B1 (fr) 2006-07-19

Family

ID=33039263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040010806 Expired - Fee Related EP1479891B1 (fr) 2003-05-22 2004-05-04 Dispositif pour actionner une vanne à papillon

Country Status (2)

Country Link
EP (1) EP1479891B1 (fr)
DE (2) DE10323121A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9897014B2 (en) * 2008-10-15 2018-02-20 Motion Pro, Inc. Variable rate push/pull twist throttle
JP6442425B2 (ja) * 2016-03-08 2018-12-19 豊田鉄工株式会社 スロットル弁開閉制御装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133721A (en) * 1965-01-29 1968-11-13 Smiths Industries Ltd Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages
JPS57198329A (en) * 1981-05-30 1982-12-04 Nippon Denso Co Ltd Opening and closing device of intake air throttle valve for internal combustion engine
DE3329791A1 (de) * 1983-08-18 1985-02-28 Vdo Adolf Schindling Ag, 6000 Frankfurt Motorisch angetriebenes stellglied fuer die schwenkachse einer drosselklappe
US5239891A (en) * 1991-10-07 1993-08-31 Ford Motor Company Cam follower variable ratio throttle linkage
US5165298A (en) * 1991-10-08 1992-11-24 General Motors Corporation Throttle cable linkage

Also Published As

Publication number Publication date
DE10323121A1 (de) 2004-12-16
DE502004000975D1 (de) 2006-08-31
EP1479891A3 (fr) 2004-12-22
EP1479891A2 (fr) 2004-11-24

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