EP1063403B1 - Lastverstellvorrichtung - Google Patents
Lastverstellvorrichtung 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
Links
Images
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.
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)
- Power Steering Mechanism (AREA)
Description
- 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.
Claims (11)
- 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 Minimallaststellunq 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, dadurch gekennzeichnet, daß die Notlauffeder (17, 22) aus einem elastischen Kunststoff gefertigt ist.
- Lastverstellvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Notlauffeder (17, 22) zwischen der Stellwelle (2) und einem von der Rückstellfeder (12) gegen den Anschlag (15) der Notlaufstellung bewegbaren Hebel (13, 23) angeordnet ist.
- Lastverstellvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stellwelle (2) unmittelbar mit einem Stellgetriebe (6) des Stellantriebs in Wirkverbindung steht.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hebel (13, 23) eine die Stellwelle (2) konzentrisch umschließende Hülse (16, 20) aufweist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Notlauffeder (17, 22) ringförmig, die Stellwelle (2) umschließend gestaltet ist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die ringförmig gestaltete Notlauffeder (17) Ausnehmungen (19) aufweist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Notlauffeder (17, 22) stoffschlüssig mit der Hülse (16, 20) und mit einer drehfest an der Stellwelle (2) befestigten Buchse (18, 21) verbunden ist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Drehwinkel zwischen der Buchse (18, 21) und der Stellwelle (2) einstellbar ist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hebel (13, 23) und die Hülse (16, 20) einteilig aus Kunststoff gefertigt sind.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Hülse (20) oder die Buchse (21) einen Vorspannhebel (24) zur Vorspannung der Notlauffeder (22) hat und daß der Vorspannhebel (24) in Notlaufstellung gegen einen Anschlag (26) des jeweils anderen Bauteils vorgespannt ist.
- Lastverstellvorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Hülse (20) einen Vorsprung (25) aufweist, wobei auf einer Seite des Vorsprungs (25) der Anschlag (26) und auf der dem Anschlag (26) gegenüberliegenden Seite eine Rampe (27) angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19928632 | 1999-06-23 | ||
DE19928632A DE19928632A1 (de) | 1999-06-23 | 1999-06-23 | Lastverstellvorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1063403A2 EP1063403A2 (de) | 2000-12-27 |
EP1063403A3 EP1063403A3 (de) | 2001-08-01 |
EP1063403B1 true EP1063403B1 (de) | 2004-12-01 |
Family
ID=7912178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00109411A Expired - Lifetime EP1063403B1 (de) | 1999-06-23 | 2000-05-03 | Lastverstellvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6397815B1 (de) |
EP (1) | EP1063403B1 (de) |
KR (1) | KR20010049617A (de) |
BR (1) | BR0002852A (de) |
DE (2) | DE19928632A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3750934B2 (ja) * | 2002-02-25 | 2006-03-01 | 三菱電機株式会社 | 吸気絞弁装置 |
DE10327868A1 (de) | 2003-06-18 | 2005-01-05 | Siemens Ag | Stellantrieb zur reversiblen Bewegung einer Ventilklappe eines Ventils |
JP4366324B2 (ja) * | 2005-03-17 | 2009-11-18 | 三菱電機株式会社 | 内燃機関用吸気量制御装置 |
FR2901005B1 (fr) * | 2006-05-12 | 2008-08-08 | Valeo Systemes Thermiques | Butee haute pour vanne rotative |
KR100750404B1 (ko) | 2006-08-09 | 2007-08-17 | (주)모토닉 | 전자제어식 쓰로틀밸브장치 |
US20080067029A1 (en) * | 2006-09-18 | 2008-03-20 | Garrick Robert D | Impact damper mechanism |
KR100815162B1 (ko) * | 2007-04-03 | 2008-03-19 | (주)모토닉 | 차량용 스로틀 장치 |
KR100815157B1 (ko) * | 2007-05-22 | 2008-03-19 | (주)모토닉 | 전자제어식 쓰로틀밸브장치 |
DE102007025441B4 (de) * | 2007-05-31 | 2020-06-18 | Continental Automotive Gmbh | Lastverstelleinrichtung |
KR101685392B1 (ko) * | 2015-06-11 | 2016-12-12 | 주식회사 현대케피코 | 리브 구조를 가지는 vcm 액추에이터 |
DE102015215732A1 (de) | 2015-08-18 | 2017-02-23 | Mahle International Gmbh | Steller zum Verstellen eines Stellorgans |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3631283C2 (de) * | 1986-09-13 | 1999-11-25 | Bosch Gmbh Robert | Einrichtung zur gesteuerten Zumessung von Verbrennungsluft in eine Brennkraftmaschine |
DE3901585A1 (de) * | 1989-01-20 | 1990-07-26 | Vdo Schindling | Lastverstelleinrichtung |
DE4108480A1 (de) * | 1991-03-15 | 1992-09-17 | Freudenberg Carl Fa | Elastische kupplung mit zusammengefasster lagerung und drehbegrenzung |
DE4141104C2 (de) * | 1991-12-13 | 1995-09-07 | Vdo Schindling | Vorrichtung zur Verstellung einer Drosselklappe |
US5429090A (en) * | 1994-02-28 | 1995-07-04 | Coltec Industries Inc. | Fail safe throttle positioning system |
DE9409891U1 (de) * | 1994-06-18 | 1994-08-11 | A B Elektronik Gmbh | Anordnung zur Notfahrstellung eines Drosselklappenelements |
IT1277728B1 (it) * | 1994-12-24 | 1997-11-12 | Luk Getriebe Systems Gmbh | Dispositivo e procedimento per il comando di un sistema di trasmissione di momento torcente efficace fra una unita' di |
JPH102236A (ja) * | 1996-06-17 | 1998-01-06 | Aisan Ind Co Ltd | スロットル弁制御装置 |
EP1512857A3 (de) * | 1996-09-03 | 2011-04-20 | Hitachi Automotive Systems, Ltd. | Drosselklappen-Betätigungsvorrichtung für eine Brennkraftmaschine |
-
1999
- 1999-06-23 DE DE19928632A patent/DE19928632A1/de not_active Withdrawn
-
2000
- 2000-05-03 EP EP00109411A patent/EP1063403B1/de not_active Expired - Lifetime
- 2000-05-03 DE DE50008803T patent/DE50008803D1/de 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/pt active Search and Examination
- 2000-06-23 KR KR1020000034841A patent/KR20010049617A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US6397815B1 (en) | 2002-06-04 |
BR0002852A (pt) | 2001-01-30 |
DE50008803D1 (de) | 2005-01-05 |
EP1063403A2 (de) | 2000-12-27 |
EP1063403A3 (de) | 2001-08-01 |
DE19928632A1 (de) | 2000-12-28 |
KR20010049617A (ko) | 2001-06-15 |
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