EP1063403B1 - Load control device - Google Patents
Load control device Download PDFInfo
- Publication number
- EP1063403B1 EP1063403B1 EP00109411A EP00109411A EP1063403B1 EP 1063403 B1 EP1063403 B1 EP 1063403B1 EP 00109411 A EP00109411 A EP 00109411A EP 00109411 A EP00109411 A EP 00109411A EP 1063403 B1 EP1063403 B1 EP 1063403B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- emergency
- spring
- adjusting device
- actuating shaft
- load
- 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
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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
- 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
- F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
Definitions
- the invention relates to a load adjustment device for a the performance of an internal combustion engine of a motor vehicle determining, especially as a throttle valve trained actuator arranged on an actuating shaft, with a reversible actuator for movement the control shaft between a minimum load position and a Full load position, with a return spring for pre-tensioning the control shaft in the minimum load direction and with an emergency running spring for preloading the control shaft in Full load direction in a determined by a stop Emergency position.
- a load adjustment device of the above type is made known from EP 0 378 737 B1.
- the reversible actuator this load adjustment device has an electric motor for moving the actuator. If the Actuator or its control becomes the actuator from the emergency running spring and the return spring moved to an emergency running position.
- This emergency running position is located between the minimum load position and the Full load. In this emergency running position, the Internal combustion engine a sufficiently large torque to the motor vehicle at low speed from one To move the danger zone.
- the run-flat spring and the Return springs are each designed as steel springs, the spring force of the emergency running spring at least is dimensioned as large as the spring force of the return spring.
- a disadvantage of the known load adjustment device is that they are very complex and expensive is to be manufactured. Furthermore, opposing one another Steel springs vibrate the control shaft and thereby an exact definition of the emergency running position difficult.
- the invention is based on the problem of a load adjustment device of the type mentioned at the outset, that it is particularly inexpensive to manufacture and that the emergency running position is particularly precisely defined leaves.
- the emergency running spring has its own damping, so that the control shaft vibrates reliably is avoided.
- the emergency running position is therefore easy set and will if the actuator fails reliably achieved.
- the emergency running spring also dampens Impacts from the stop on the actuating shaft and thus leads to a low bearing wear of the control shaft.
- the actuating shaft is also dampened by the emergency running spring.
- the emergency running spring can be compared to the Steel spring of the known load adjustment device very inexpensively finished. This leads to a reduction the manufacturing costs of the load adjustment device according to the invention.
- the elastic plastic can for example rubber.
- the load adjustment device according to the invention is designed is particularly compact when the emergency running spring is between the adjusting shaft and one of the return spring against the Stop of the emergency position movable lever arranged is.
- the load adjustment device can be vote especially easy if the control shaft immediately with an actuator of the actuator in operative connection stands.
- the relationship is the spring forces for determining the emergency running position irrelevant because in the abutting the stop Position of the lever the emergency running position exclusively is determined by the emergency running spring.
- the emergency running springs and the return spring arranged one behind the other. Therefore is a complex coordination of the emergency running spring the return spring is not required.
- the load adjustment device according to the invention is designed constructively particularly simple if the lever is a the adjusting shaft has a concentrically enclosing sleeve.
- the emergency running spring is according to an advantageous development the invention for guiding and holding the sleeve designed with the stop if the emergency running spring is ring-shaped, the actuating shaft is designed to be encompassing. hereby has the load adjustment device according to the invention particularly few components, which leads to a further reduction of their manufacturing costs.
- the spring characteristic of the emergency running spring can be according to a other advantageous development of the invention simply adjust if the ring-shaped emergency running spring Has recesses.
- the ratio of the size of the recesses to the mass and arrangement of the elastic Plastic determines the spring characteristic of the emergency running spring.
- the load adjustment device can be Assemble particularly easily if the emergency running spring is integral with the sleeve and with a rotationally fixed on the Actuating shaft attached socket is connected. hereby forms the emergency running spring with adjacent components pre-assembled structural unit. This structural unit can then be easily in their intended position mount on the shaft. It can also Emergency running position of the control shaft when it touches the stop Simply set the lever.
- the emergency running position can be advantageous according to another Subsequent development of the invention is simple adjust when there is an angle of rotation between the socket and the control shaft is adjustable.
- Load adjustment device helps when the lever and the sleeve are made in one piece from plastic are.
- An intended spring force of the emergency running spring in the emergency running position can be according to another advantageous development simply ensure the invention when the Sleeve or the bushing a pretensioning lever for pretensioning the emergency running spring and when the pretensioning lever is in the emergency running position against the stop of the other component is biased.
- the setting of the spring force of the emergency running spring in the emergency running position is designed according to another advantageous Development of the invention is particularly simple, if the sleeve has a projection, being on a Side of the projection the stop and on that of the stop opposite ramp arranged is. Furthermore, the projection has by its arrangement large dimensions on the sleeve and thus high stability.
- FIG. 1 shows a portion of a housing 1 a Throttle body one for power control one Not provided internal combustion engine provided Load adjusting.
- a Throttle valve shaft trained control shaft 2 mounted, on which a schematically illustrated throttle valve 3 is arranged is.
- the actuating gear 6 has a servomotor 7, which has a Drive pinion 8 a large-diameter intermediate gear 9 drives.
- This intermediate gear 9 is in one piece with one diameter small gear 10 manufactured and on a Axis 11 mounted.
- the tooth segment 4 having Position 5 is permanently engaged with the on the Intermediate gear 9 arranged gear 10.
- the throttle body is designed as a torsion spring Return spring 12.
- One end of the return spring 12 is on a lever 13 connected to the control shaft 2, while the other end is attached to a housing Stop 14 supports. Furthermore is on the case 1 a stop 15 for the connected to the control shaft 2 Lever 13 arranged.
- FIG 2 shows a partially sectioned view on the throttle valve neck of Figure 1 perpendicular the actuator 6. It can be seen that the with the control shaft 2 connected lever 13 on a sleeve 16th is arranged. On the inside of the sleeve 16 is one ring-shaped, made of an elastic plastic Emergency running spring 17 attached.
- the throttle body shown in an emergency running position, in which the servomotor 7 shown in Figure 1 is de-energized is and the emergency running spring 17 and the return spring 12 Preload throttle valve 3 in the position shown.
- Figure 3 shows in a greatly enlarged sectional view by a partial area receiving the emergency running spring 17 the control shaft 2.
- the made of elastic plastic manufactured emergency running spring 17 is cohesive on a Bush 18 attached.
- the socket 18 is provided in one Rotary position in which the in Figures 1 and 2 shown throttle valve 3 in the intended position is welded to the control shaft 2.
- the bushing 18 can also have an internal multi-tooth have and on a correspondingly designed External spline of the control shaft 2 must be attached.
- the run-flat spring 17 has to generate a spring characteristic curve a recess 19.
- Figure 4 shows in perspective one of an elastic Plastic-made, between a sleeve 20 and one Socket 21 arranged emergency running spring 22.
- the sleeve 20 and the socket 21, like that of FIG. 3, is used for transmission of a torque on the non-rotatably connected to the socket 21 Control shaft 2.
- the sleeve 20 has a lever 23 for Articulation of the return spring 12 shown in FIG. 3.
- a biasing lever 24 is arranged on the bushing 21.
- the Sleeve 20 has a projection 25 with a stop 26 on, against which the biasing lever 24 is biased. This indicates the emergency running position. With a movement of the Control shaft 2 shown in Figure 1 in the direction of minimum load position the biasing lever 24 moves away from the stop 26.
- the projection 25 in the biased position shown has a ramp 27.
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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)
- Power Steering Mechanism (AREA)
Description
Die Erfindung betrifft eine Lastverstellvorrichtung für ein die Leistung einer Brennkraftmaschine eines Kraftfahrzeuges bestimmendes, insbesondere als Drosselklappe ausgebildetes, auf einer Stellwelle angeordnetes Stellglied, mit einem reversierbaren Stellantrieb zur Bewegung der Stellwelle zwischen einer Minimallaststellung und einer Vollaststellung, mit einer Rückstellfeder zur Vorspannung der Stellwelle in Minimallastrichtung und mit einer Notlauffeder zur Vorspannung der Stellwelle in Vollastrichtung in eine von einem Anschlag festgelegte Notlaufstellung.The invention relates to a load adjustment device for a the performance of an internal combustion engine of a motor vehicle determining, especially as a throttle valve trained actuator arranged on an actuating shaft, with a reversible actuator for movement the control shaft between a minimum load position and a Full load position, with a return spring for pre-tensioning the control shaft in the minimum load direction and with an emergency running spring for preloading the control shaft in Full load direction in a determined by a stop Emergency position.
Eine Lastverstellvorrichtung der vorstehenden Art ist aus der EP 0 378 737 B1 bekannt. Der reversierbare Stellantrieb dieser Lastverstellvorrichtung hat einen Elektromotor zur Bewegung des Stellgliedes. Bei einem Ausfall des Stellantriebs oder dessen Steuerung wird das Stellglied von der Notlauffeder und der Rückstellfeder zwangsläufig in eine Notlaufstellung bewegt. Diese Notlaufstellung befindet sich zwischen der Minimallaststellung und der Vollaststellung. In dieser Notlaufstellung erzeugt die Brennkraftmaschine ein ausreichend großes Drehmoment, um das Kraftfahrzeug mit geringer Geschwindigkeit aus einem Gefahrenbereich zu bewegen. Die Notlauffeder und die Rückstellfeder sind hierbei jeweils als Stahlfedern gestaltet, wobei die Federkraft der Notlauffeder mindestens so groß bemessen ist wie die Federkraft der Rückstellfeder. Nachteilig bei der bekannten Lastverstellvorrichtung ist, daß sie sehr aufwendig aufgebaut und kostenintensiv zu fertigen ist. Weiterhin können einander entgegengesetzte Stahlfedern die Stellwelle in Schwingungen versetzen und hierdurch eine exakte Festlegung der Notlaufstellung erschweren.A load adjustment device of the above type is made known from EP 0 378 737 B1. The reversible actuator this load adjustment device has an electric motor for moving the actuator. If the Actuator or its control becomes the actuator from the emergency running spring and the return spring moved to an emergency running position. This emergency running position is located between the minimum load position and the Full load. In this emergency running position, the Internal combustion engine a sufficiently large torque to the motor vehicle at low speed from one To move the danger zone. The run-flat spring and the Return springs are each designed as steel springs, the spring force of the emergency running spring at least is dimensioned as large as the spring force of the return spring. A disadvantage of the known load adjustment device is that they are very complex and expensive is to be manufactured. Furthermore, opposing one another Steel springs vibrate the control shaft and thereby an exact definition of the emergency running position difficult.
Der Erfindung liegt das Problem zugrunde, eine Lastverstellvorrichtung der eingangs genannten Art so zu gestalten, daß sie besonders kostengünstig zu fertigen ist und daß sich die Notlaufstellung besonders genau festlegen läßt.The invention is based on the problem of a load adjustment device of the type mentioned at the outset, that it is particularly inexpensive to manufacture and that the emergency running position is particularly precisely defined leaves.
Dieses Problem wird erfindungsgemäß dadurch gelöst, daß die Notlauffeder aus einem elastischen Kunststoff gefertigt ist.This problem is solved according to the invention in that the run-flat spring is made of an elastic plastic is.
Durch diese Gestaltung hat die Notlauffeder eine Eigendämpfung, so daß ein Schwingen der Stellwelle zuverlässig vermieden wird. Die Notlaufstellung läßt sich daher einfach festlegen und wird beim Ausfall des Stellantriebs zuverlässig erreicht. Weiterhin dämpft die Notlauffeder Stöße von dem Anschlag auf die Stellwelle und führt damit zu einem geringen Lagerverschleiß der Stellwelle. Durch Druckschwankungen im Saugrohr der Brennkraftmaschine hervorgerufene Schwingungen des Stellgliedes und damit der Stellwelle werden von der Notlauffeder ebenfalls gedämpft. Die Notlauffeder läßt sich im Vergleich zu der Stahlfeder der bekannten Lastverstellvorrichtung sehr kostengünstig fertigen. Dies führt zu einer Verringerung der Fertigungskosten der erfindungsgemäßen Lastverstellvorrichtung. Bei dem elastischen Kunststoff kann es sich beispielsweise um Gummi handeln.Due to this design, the emergency running spring has its own damping, so that the control shaft vibrates reliably is avoided. The emergency running position is therefore easy set and will if the actuator fails reliably achieved. The emergency running spring also dampens Impacts from the stop on the actuating shaft and thus leads to a low bearing wear of the control shaft. By Pressure fluctuations in the intake manifold of the internal combustion engine Vibrations of the actuator and thus the The actuating shaft is also dampened by the emergency running spring. The emergency running spring can be compared to the Steel spring of the known load adjustment device very inexpensively finished. This leads to a reduction the manufacturing costs of the load adjustment device according to the invention. The elastic plastic can for example rubber.
Die erfindungsgemäße Lastverstellvorrichtung gestaltet sich besonders kompakt, wenn die Notlauffeder zwischen der Stellwelle und einem von der Rückstellfeder gegen den Anschlag der Notlaufstellung bewegbaren Hebel angeordnet ist.The load adjustment device according to the invention is designed is particularly compact when the emergency running spring is between the adjusting shaft and one of the return spring against the Stop of the emergency position movable lever arranged is.
Die erfindungsgemäße Lastverstellvorrichtung läßt sich besonders einfach abstimmen, wenn die Stellwelle unmittelbar mit einem Stellgetriebe des Stellantriebs in Wirkverbindung steht. Durch diese Gestaltung ist das Verhältnis der Federkräfte für die Festlegung der Notlaufstellung unerheblich, da in der an dem Anschlag anliegenden Stellung des Hebels die Notlaufstellung ausschließlich von der Notlauffeder bestimmt wird. Zwischen der Notlaufstellung und der Vollaststellung sind die Notlauffeder und die Rückstellfeder hintereinander angeordnet. Daher ist eine aufwendige Abstimmung der Notlauffeder gegenüber der Rückstellfeder nicht erforderlich.The load adjustment device according to the invention can be vote especially easy if the control shaft immediately with an actuator of the actuator in operative connection stands. Through this design, the relationship is the spring forces for determining the emergency running position irrelevant because in the abutting the stop Position of the lever the emergency running position exclusively is determined by the emergency running spring. Between the emergency running position and the full load position are the emergency running springs and the return spring arranged one behind the other. Therefore is a complex coordination of the emergency running spring the return spring is not required.
Die erfindungsgemäße Lastverstellvorrichtung gestaltet sich konstruktiv besonders einfach, wenn der Hebel eine die Stellwelle konzentrisch umschließende Hülse aufweist.The load adjustment device according to the invention is designed constructively particularly simple if the lever is a the adjusting shaft has a concentrically enclosing sleeve.
Die Notlauffeder ist gemäß einer vorteilhaften Weiterbildung der Erfindung zur Führung und Halterung der Hülse mit dem Anschlag gestaltet, wenn die Notlauffeder ringförmig, die Stellwelle umschließend gestaltet ist. Hierdurch hat die erfindungsgemäße Lastverstellvorrichtung besonders wenig Bauteile, was zu einer weiteren Verringerung ihrer Fertigungskosten führt. The emergency running spring is according to an advantageous development the invention for guiding and holding the sleeve designed with the stop if the emergency running spring is ring-shaped, the actuating shaft is designed to be encompassing. hereby has the load adjustment device according to the invention particularly few components, which leads to a further reduction of their manufacturing costs.
Die Federkennlinie der Notlauffeder läßt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach einstellen, wenn die ringförmig gestaltete Notlauffeder Ausnehmungen aufweist. Das Verhältnis der Größe der Ausnehmungen zu der Masse und der Anordnung des elastischen Kunststoffs bestimmt dabei die Federkennlinie der Notlauffeder.The spring characteristic of the emergency running spring can be according to a other advantageous development of the invention simply adjust if the ring-shaped emergency running spring Has recesses. The ratio of the size of the recesses to the mass and arrangement of the elastic Plastic determines the spring characteristic of the emergency running spring.
Die erfindungsgemäße Lastverstellvorrichtung läßt sich besonders einfach montieren, wenn die Notlauffeder stoffschlüssig mit der Hülse und mit einer drehfest an der Stellwelle befestigten Buchse verbunden ist. Hierdurch bildet die Notlauffeder mit angrenzenden Bauteilen eine vormontierte bauliche Einheit. Diese bauliche Einheit läßt sich anschließend einfach in ihrer vorgesehenen Position auf der Welle montieren. Dabei läßt sich zudem die Notlaufstellung der Stellwelle bei an dem Anschlag anliegendem Hebel einfach einstellen.The load adjustment device according to the invention can be Assemble particularly easily if the emergency running spring is integral with the sleeve and with a rotationally fixed on the Actuating shaft attached socket is connected. hereby forms the emergency running spring with adjacent components pre-assembled structural unit. This structural unit can then be easily in their intended position mount on the shaft. It can also Emergency running position of the control shaft when it touches the stop Simply set the lever.
Die Notlaufstellung läßt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung nachträglich einfach einstellen, wenn ein Drehwinkel zwischen der Buchse und der Stellwelle einstellbar ist.The emergency running position can be advantageous according to another Subsequent development of the invention is simple adjust when there is an angle of rotation between the socket and the control shaft is adjustable.
Zur weiteren Verringerung der Fertigungskosten der erfindungsgemäßen Lastverstellvorrichtung trägt es bei, wenn der Hebel und die Hülse einteilig aus Kunststoff gefertigt sind.To further reduce the manufacturing costs of the invention Load adjustment device helps when the lever and the sleeve are made in one piece from plastic are.
Eine vorgesehene Federkraft der Notlauffeder in Notlaufstellung läßt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach sicherstellen, wenn die Hülse oder die Buchse einen Vorspannhebel zur Vorspannung der Notlauffeder hat und wenn der Vorspannhebel in Notlaufstellung gegen den Anschlag des jeweils anderen Bauteils vorgespannt ist. An intended spring force of the emergency running spring in the emergency running position can be according to another advantageous development simply ensure the invention when the Sleeve or the bushing a pretensioning lever for pretensioning the emergency running spring and when the pretensioning lever is in the emergency running position against the stop of the other component is biased.
Die Einstellung der Federkraft der Notlauffeder in Notlaufstellung gestaltet sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung besonders einfach, wenn die Hülse einen Vorsprung aufweist, wobei auf einer Seite des Vorsprungs der Anschlag und auf der dem Anschlag gegenüberliegenden Seite eine Rampe angeordnet ist. Weiterhin hat der Vorsprung durch seine Anordnung auf der Hülse große Abmessungen und damit eine hohe Stabilität.The setting of the spring force of the emergency running spring in the emergency running position is designed according to another advantageous Development of the invention is particularly simple, if the sleeve has a projection, being on a Side of the projection the stop and on that of the stop opposite ramp arranged is. Furthermore, the projection has by its arrangement large dimensions on the sleeve and thus high stability.
Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind zwei davon in der Zeichnung dargestellt und werden nachfolgend beschrieben. Diese zeigt in
- Fig. 1
- eine Schnittdarstellung einer erfindungsgemäßen Lastverstellvorrichtung,
- Fig. 2
- eine teilweise geschnittene Seitenansicht der
Lastverstellvorrichtung aus
Figur 1 in Notlaufstellung, - Fig. 3
- eine stark vergrößerte Schnittdarstellung
durch einen Teilbereich der Lastverstellvorrichtung
aus
Figur 2 entlang der Linie III - III, - Fig. 4
- eine perspektivische Darstellung einer Notlauffeder einer weiteren Ausführungsform der erfindungsgemäßen Lastverstellvorrichtung.
- Fig. 1
- 2 shows a sectional illustration of a load adjustment device according to the invention,
- Fig. 2
- 2 shows a partially sectioned side view of the load adjustment device from FIG. 1 in the emergency running position,
- Fig. 3
- 2 shows a greatly enlarged sectional view through a partial area of the load adjustment device from FIG. 2 along the line III-III,
- Fig. 4
- a perspective view of an emergency running spring of a further embodiment of the load adjustment device according to the invention.
Figur 1 zeigt einen Teilbereich eines Gehäuses 1 eines
Drosselklappenstutzens einer zur Leistungsregelung einer
nicht dargestellten Brennkraftmaschine vorgesehenen
Lastverstellvorrichtung. In dem Gehäuse 1 ist eine als
Drosselklappenwelle ausgebildete Stellwelle 2 gelagert,
auf der eine schematisch dargestellte Drosselklappe 3 angeordnet
ist. Drehfest auf der Stellwelle 2 sitzt ein
Zahnsegment 4 aufweisendes Stellteil 5, welches mittels
eines Stellgetriebes 6 verschwenkbar ist.Figure 1 shows a portion of a housing 1 a
Throttle body one for power control one
Not provided internal combustion engine provided
Load adjusting. In the
Das Stellgetriebe 6 hat einen Stellmotor 7, der über ein
Antriebsritzel 8 ein durchmessergroßes Zwischenzahnrad 9
antreibt. Dieses Zwischenzahnrad 9 ist einteilig mit einem
durchmesserkleinen Zahnrad 10 gefertigt und auf einer
Achse 11 gelagert. Das das Zahnsegment 4 aufweisende
Stellteil 5 steht permanent im Eingriff mit dem auf dem
Zwischenzahnrad 9 angeordneten Zahnrad 10. Weiterhin hat
der Drosselklappenstutzen eine als Drehfeder ausgebildete
Rückstellfeder 12. Ein Ende der Rückstellfeder 12 ist an
einem mit der Stellwelle 2 verbundenen Hebel 13 angelenkt,
während sich das andere Ende an einem gehäusefesten
Anschlag 14 abstützt. Weiterhin ist auf dem Gehäuse
1 ein Anschlag 15 für den mit der Stellwelle 2 verbundenen
Hebel 13 angeordnet.The actuating
Figur 2 zeigt in einer teilweise geschnittenen Ansicht
auf den Drosselklappenstutzen aus Figur 1 senkrecht auf
das Stellgetriebe 6. Hierbei ist zu erkennen, daß der mit
der Stellwelle 2 verbundene Hebel 13 auf einer Hülse 16
angeordnet ist. An der Innenseite der Hülse 16 ist eine
ringförmige, aus einem elastischen Kunststoff gefertigte
Notlauffeder 17 befestigt. In Figur 2 ist der Drosselklappenstutzen
in einer Notlaufstellung dargestellt, in
welcher der in Figur 1 dargestellte Stellmotor 7 stromlos
ist und die Notlauffeder 17 und die Rückstellfeder 12 die
Drosselklappe 3 in die eingezeichnete Stellung vorspannen.
Bei einer Drehung des durchmessergroßen Zwischenzahnrades
9 in Richtung des Uhrzeigersinns bewegt sich
das auf der Stellwelle 2 drehfest angeordnete Stellteil 5
entgegen dem Uhrzeigersinn und spannt dabei die Rückstellfeder
12, bis die Drosselklappe 3 eine Vollaststellung
erreicht. Bewegt man ausgehend von der eingezeichneten
Notlaufstellung das Stellteil 5 im Uhrzeigersinn,
wird die Stellwelle 2 gegenüber der Hülse 16 verdreht.
Die Hülse 16 verbleibt dabei in der von dem Hebel 13 an
dem gehäusefesten Anschlag 15 festgelegten Drehstellung.
Durch die Verdrehung der Stellwelle 2 gegenüber der Hülse
16 wird die Notlauffeder 17 verdreht.Figure 2 shows a partially sectioned view
on the throttle valve neck of Figure 1 perpendicular
the
Figur 3 zeigt in einer stark vergrößerten Schnittdarstellung
durch einen die Notlauffeder 17 aufnehmenden Teilbereich
der Stellwelle 2. Die aus elastischem Kunststoff
gefertigte Notlauffeder 17 ist stoffschlüssig auf einer
Buchse 18 befestigt. Die Buchse 18 ist in einer vorgesehenen
Drehstellung, in der sich die in den Figuren 1 und
2 dargestellte Drosselklappe 3 in der vorgesehenen Position
befindet, an der Stellwelle 2 festgeschweißt.
Selbstverständlich kann die Buchse 18 auch einen Innenvielzahn
aufweisen und auf einem entsprechend gestalteten
Außenvielzahn der Stellwelle 2 aufgesteckt sein. Die Notlauffeder
17 hat zur Erzeugung einer vorgesehenen Federkennlinie
eine Ausnehmung 19.Figure 3 shows in a greatly enlarged sectional view
by a partial area receiving the
Figur 4 zeigt perspektivisch eine aus einem elastischen
Kunststoff gefertigte, zwischen einer Hülse 20 und einer
Buchse 21 angeordnete Notlauffeder 22. Die Hülse 20 und
die Buchse 21 dienen wie die aus Figur 3 zur Übertragung
eines Drehmoments auf die drehfest mit der Buchse 21 verbundene
Stellwelle 2. Die Hülse 20 hat einen Hebel 23 zur
Anlenkung der in Figur 3 dargestellten Rückstellfeder 12.
An der Buchse 21 ist ein Vorspannhebel 24 angeordnet. Die
Hülse 20 weist einen Vorsprung 25 mit einem Anschlag 26
auf, gegen den der Vorspannhebel 24 vorgespannt ist. Dies
kennzeichnet die Notlaufstellung. Bei einer Bewegung der
in Figur 1 dargestellten Stellwelle 2 in Richtung Minimallaststellung
entfernt sich der Vorspannhebel 24 von
dem Anschlag 26. Zur Vereinfachung der Bewegung des Vorspannhebels
24 aus der nicht vorgespannten Stellung vor
dem Vorsprung 25 in die eingezeichnete vorgespannte Stellung
hat der Vorsprung 25 eine Rampe 27.Figure 4 shows in perspective one of an elastic
Plastic-made, between a
Claims (11)
- Load adjusting device for an actuator that determines the output of an internal combustion engine of a motor vehicle, in particular an actuator designed as a throttle, and is arranged on an actuating shaft, having a reversible actuating drive for moving the actuating shaft between a minimum-load position and a full-load position, having a return spring for biasing the actuating shaft in the minimum-load direction and having an emergency-running spring for biasing the actuating shaft in the full-load direction into an emergency-running position defined by a stop, characterized in that the emergency-running spring (17, 22) is produced from an elastic polymer.
- Load adjusting device according to Claim 1, characterized in that the emergency-running spring (17, 22) is arranged between the actuating shaft (2) and a lever (13, 23) that can be moved by the return spring (12) against the stop (15) of the emergency-running position.
- Load adjusting device according to Claim 1 or 2, characterized in that the actuating shaft (2) has a direct operative connection to an actuating mechanism (6) of the actuating drive.
- Load adjusting device according to at least one of the preceding claims, characterized in that the lever (13, 23) has a sleeve (16, 20) that surrounds the actuating shaft (2) concentrically.
- Load adjusting device according to at least one of the preceding claims, characterized in that the emergency-running spring (17, 22) is shaped like a ring surrounding the actuating shaft (2).
- Load adjusting device according to at least one of the preceding claims, characterized in that the ring-shaped emergency-running spring (17) has recesses (19).
- Load adjusting device according to at least one of the preceding claims, characterized in that the emergency-running spring (17, 22) is integrally connected to the sleeve (16, 20) and to a bush (18, 21) that is fixed to the actuating shaft (2) so as to rotate with it.
- Load adjusting device according to at least one of the preceding claims, characterized in that a rotation angle between the bush (18, 21) and the actuating shaft (2) can be set.
- Load adjusting device according to at least one of the preceding claims, characterized in that the lever (13, 23) and the sleeve (16, 20) are produced in one piece from a polymer.
- Load adjusting device according to at least one of the preceding claims, characterized in that the sleeve (20) or the bush (21) has a biasing lever (24) for biasing the emergency-running spring (22), and in that, when it is in the emergency-running position, the biasing lever (24) is biased against a stop (26) of the respective other component.
- Load adjusting device according to at least one of the preceding claims, characterized in that the sleeve (20) has a protrusion (25), the stop (26) being arranged on one side of the protrusion (25), and a ramp (27) being arranged on the side opposite the stop (26).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19928632A DE19928632A1 (en) | 1999-06-23 | 1999-06-23 | Load adjustment device |
| DE19928632 | 1999-06-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1063403A2 EP1063403A2 (en) | 2000-12-27 |
| EP1063403A3 EP1063403A3 (en) | 2001-08-01 |
| EP1063403B1 true EP1063403B1 (en) | 2004-12-01 |
Family
ID=7912178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00109411A Expired - Lifetime EP1063403B1 (en) | 1999-06-23 | 2000-05-03 | Load control device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6397815B1 (en) |
| EP (1) | EP1063403B1 (en) |
| KR (1) | KR20010049617A (en) |
| BR (1) | BR0002852A (en) |
| DE (2) | DE19928632A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3750934B2 (en) * | 2002-02-25 | 2006-03-01 | 三菱電機株式会社 | Inlet throttle device |
| DE10327868A1 (en) | 2003-06-18 | 2005-01-05 | Siemens Ag | Actuator for the reversible movement of a valve flap of a valve |
| JP4366324B2 (en) * | 2005-03-17 | 2009-11-18 | 三菱電機株式会社 | Intake air amount control device for internal combustion engine |
| FR2901005B1 (en) * | 2006-05-12 | 2008-08-08 | Valeo Systemes Thermiques | HIGH STOP FOR ROTARY VALVE |
| KR100750404B1 (en) | 2006-08-09 | 2007-08-17 | (주)모토닉 | Electronically Controlled Throttle Valve Device |
| US20080067029A1 (en) * | 2006-09-18 | 2008-03-20 | Garrick Robert D | Impact damper mechanism |
| KR100815162B1 (en) * | 2007-04-03 | 2008-03-19 | (주)모토닉 | Car Throttle Device |
| KR100815157B1 (en) * | 2007-05-22 | 2008-03-19 | (주)모토닉 | Electronically Controlled Throttle Valve Device |
| DE102007025441B4 (en) * | 2007-05-31 | 2020-06-18 | Continental Automotive Gmbh | Load adjustment device |
| KR101685392B1 (en) * | 2015-06-11 | 2016-12-12 | 주식회사 현대케피코 | VCM Actuator having Rib Structure |
| DE102015215732A1 (en) | 2015-08-18 | 2017-02-23 | Mahle International Gmbh | Actuator for adjusting an actuator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3631283C2 (en) * | 1986-09-13 | 1999-11-25 | Bosch Gmbh Robert | Device for the controlled metering of combustion air in an internal combustion engine |
| DE3901585A1 (en) * | 1989-01-20 | 1990-07-26 | Vdo Schindling | LOAD ADJUSTMENT DEVICE |
| DE4108480A1 (en) * | 1991-03-15 | 1992-09-17 | Freudenberg Carl Fa | ELASTIC COUPLING WITH COMBINED BEARING AND ROTATION LIMIT |
| DE4141104C2 (en) * | 1991-12-13 | 1995-09-07 | Vdo Schindling | Device for adjusting a throttle valve |
| US5429090A (en) * | 1994-02-28 | 1995-07-04 | Coltec Industries Inc. | Fail safe throttle positioning system |
| DE9409891U1 (en) * | 1994-06-18 | 1994-08-11 | Ab Elektronik Gmbh, 59368 Werne | Arrangement for the emergency driving position of a throttle valve element |
| FR2728646B1 (en) * | 1994-12-24 | 1998-05-07 | Luk Getriebe Systeme Gmbh | DEVICE AND METHOD FOR CONTROLLING A TORQUE TRANSMISSION SYSTEM, WHICH ACTS BETWEEN A DRIVE UNIT AND A TRANSMISSION |
| JPH102236A (en) * | 1996-06-17 | 1998-01-06 | Aisan Ind Co Ltd | Controller for throttle valve |
| EP0828067B1 (en) * | 1996-09-03 | 2005-01-12 | Hitachi, Ltd. | A throttle valve control device for an internal combustion engine |
-
1999
- 1999-06-23 DE DE19928632A patent/DE19928632A1/en not_active Withdrawn
-
2000
- 2000-05-03 EP EP00109411A patent/EP1063403B1/en not_active Expired - Lifetime
- 2000-05-03 DE DE50008803T patent/DE50008803D1/en not_active Expired - Fee Related
- 2000-06-21 US US09/598,144 patent/US6397815B1/en not_active Expired - Fee Related
- 2000-06-21 BR BR0002852-5A patent/BR0002852A/en active Search and Examination
- 2000-06-23 KR KR1020000034841A patent/KR20010049617A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US6397815B1 (en) | 2002-06-04 |
| EP1063403A2 (en) | 2000-12-27 |
| DE50008803D1 (en) | 2005-01-05 |
| KR20010049617A (en) | 2001-06-15 |
| EP1063403A3 (en) | 2001-08-01 |
| BR0002852A (en) | 2001-01-30 |
| DE19928632A1 (en) | 2000-12-28 |
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