DE3918359A1 - Vehicle wheel suspension - has upper and lower link arms connected by coupling that forces wheel-side joints of arms to move in same direction - Google Patents
Vehicle wheel suspension - has upper and lower link arms connected by coupling that forces wheel-side joints of arms to move in same directionInfo
- Publication number
- DE3918359A1 DE3918359A1 DE19893918359 DE3918359A DE3918359A1 DE 3918359 A1 DE3918359 A1 DE 3918359A1 DE 19893918359 DE19893918359 DE 19893918359 DE 3918359 A DE3918359 A DE 3918359A DE 3918359 A1 DE3918359 A1 DE 3918359A1
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- arms
- wheel suspension
- joint
- same direction
- 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.)
- Withdrawn
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- 238000010168 coupling process Methods 0.000 title claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
- B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/149—Multiple bushings connected together; Restraining links
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
- B60G2204/4104—Bushings having modified rigidity in particular directions
- B60G2204/41042—Bushings having modified rigidity in particular directions by using internal cam surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Die Erfindung betrifft eine Radaufhängung für Fahrzeuge gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a wheel suspension for vehicles according to the preamble of claim 1.
Bei bekannten Einzelradaufhängungen mit übereinander liegenden, elastisch gelagerten Längs- und Querlenkern erzeugt die am Radaufstandspunkt angreifende Bremskraft ein "Aufziehen" des Radträgers um die Querachse des Fahrzeuges. Aufgrund des "Aufzieheffektes" entsteht eine unerwünschte Veränderung der Lenkgeometrie.In known independent suspension with one another lying, elastically mounted trailing and wishbones generates the braking force applied at the wheel contact point a "pulling up" the wheel carrier around the transverse axis of the Vehicle. Due to the "pull-on effect" one is created undesirable change in steering geometry.
Aufgabe der Erfindung ist es eine Radaufhängung zu schaffen, die die beim Stand der Technik auftretenden Nachteile vermeidet.The object of the invention is a wheel suspension create those that occur in the prior art Avoids disadvantages.
Diese Aufgabe wird bei einer Radaufhängung der eingangs genannten Art durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst.This task is at the beginning of a wheel suspension mentioned type by the characteristics of the characteristic Part of claim 1 solved.
Die Verwendung eines Koppelgliedes zur Zwangsführung des oberen Querlenkers in der gleichen Bewegungsrichtung des unteren Querlenkers beim Bremsvorgang ermöglicht einen einfachen und platzsparenden Aufbau. The use of a coupling link for positive guidance of the upper wishbone in the same direction of movement lower wishbone during braking allows one simple and space-saving construction.
Die Kraftübertragung des Verschiebungsweges des unteren Querlenkers auf den oberen Querlenker erfolgt vorteil hafterweise über ein druckstabiles Fluid.The power transmission of the displacement path of the lower one Wishbone on the upper wishbone is advantageous fortunately via a pressure-stable fluid.
Ausführungsformen der Erfindung werden nachstehend anhand der Zeichnungen beispielshalber beschrieben. Dabei zeigen:Embodiments of the invention are as follows described by way of example with reference to the drawings. Show:
Fig. 1 eine perspektivische Ansicht einer Doppelquerlenker-Vorderachse, Fig. 1 is a perspective view of a double wishbone front suspension,
Fig. 2 eine schematisierte und teilweise geschnittene Ansicht der in Fig. 1 gezeigten Vorderachse in Fahrzeug längsrichtung, Fig. 2 is a schematic and partially sectioned view of the front axle shown in Fig. 1 in the vehicle longitudinal direction,
Fig. 3 eine perspektivische Ansicht einer schematisierten Darstellung der in den Fig. 1 und 2 gezeigten Vorderachse, Fig. 3 is a perspective view of a schematic representation of the front axle shown in Figs. 1 and 2,
Fig. 4a und 4b Schnittansichten in Längs- und Querrichtung eines mit einem Fluid beaufschlagten Gummilagers und FIGS. 4a and 4b are sectional views in the longitudinal and transverse direction of a charged with a fluid and the rubber bearing
Fig. 5 eine perspektivische Ansicht einer Doppelquerlenker-Vorderachse in Doppel gelenk-Ausführung. Fig. 5 is a perspective view of a double wishbone front axle in double-joint design.
Fig. 1 zeigt eine Radaufhängung einer Vorderachse, bei der ein das Rad 20 lagernder Radträger 1 durch einen oberen und einen unteren Dreieckslenker 6, 9 geführt wird. Zu diesem Zweck ist der obere Dreieckslenker 6 über ein Gelenk 7 mit dem Radträger 1 und über Gelenke 8 und 12 mit dem Fahrzeugaufbau oder dergleichen 15 verbunden. Der untere Dreieckslenker 9 ist entsprechend über ein Gelenk 11 mit dem Radträger 1 und über Gelenke 10 und 13 mit dem Fahrzeugaufbau 15 oder dergleichen verbunden. Die Gelenke 7, 8, 11 und 10 sind in der Regel Kugelgelenke, während die Gelenke 12 und 13 als Gummi lager ausgebildet sind. Auf dem unteren Querlenker 9 stützt sich über ein Gelenk 5 ein Dämpferrohr 2 ab, das über ein Gelenk 3 mit dem Fahrzeugaufbau oder der gleichen 15 verbunden ist. Zwischen dem Fahrzeugaufbau 15 oder dergleichen und dem oberen Abschnitt des Dämpferrohres 2 ist eine Feder 4 in bekannter Weise angeordnet. Ferner ist eine Spurstange 26 über ein Gelenk 17 mit dem Radträger 1 verbunden. Die Gummilager 12 und 13 sind über ein Koppelglied 16 miteinander verbunden, das aus Kammern 18 und 19 besteht, die über eine Leitung 14 miteinander verbunden sind. In den Kammern 18, 19 und in der Leitung 14 ist ein geeignetes Fluid zur Druckübertragung enthalten, das zum Beispiel ein Hydrauliköl sein kann. Fig. 1 shows a wheel suspension of a front axle, overlapping in which a wheel 20 is wheel support 1 by an upper and a lower wishbone 6, 9 is conducted. For this purpose, the upper wishbone 6 is connected to the wheel carrier 1 via a joint 7 and to the vehicle body or the like 15 via joints 8 and 12 . The lower wishbone 9 is correspondingly connected to the wheel carrier 1 via a joint 11 and to the vehicle body 15 or the like via joints 10 and 13 . The joints 7 , 8 , 11 and 10 are usually ball joints, while the joints 12 and 13 are designed as rubber bearings. On the lower wishbone 9 , a damper tube 2 is supported via a joint 5 , which is connected via a joint 3 to the vehicle body or the like 15 . A spring 4 is arranged between the vehicle body 15 or the like and the upper section of the damper tube 2 in a known manner. Furthermore, a tie rod 26 is connected to the wheel carrier 1 via a joint 17 . The rubber bearings 12 and 13 are connected to one another via a coupling member 16 which consists of chambers 18 and 19 which are connected to one another via a line 14 . A suitable fluid for pressure transmission is contained in the chambers 18 , 19 and in the line 14 , which can be, for example, a hydraulic oil.
In den Fig. 2, 4a und 4b sind die Kammern 18, 19 in Schnittansichten dargestellt. Die Kammern 18, 19 werden zum einen durch die Außenwand 21 des jeweiligen Lagers 12 und 13 und zum anderen durch ein im Lager befind liches elastisches Bauteil 22 gebildet, das in dichter Verbindung mit der Außenwand 21 steht. Ferner lagert das elastische Bauteil 22 das karosserieseitige Ende des jeweiligen Lenkers 6 und 9.In Figs. 2, 4a and 4b, the chambers 18, 19 are shown in sectional views. The chambers 18 , 19 are formed on the one hand by the outer wall 21 of the respective bearing 12 and 13 and on the other hand by a resilient component 22 located in the bearing, which is in tight connection with the outer wall 21 . Furthermore, the elastic component 22 supports the body-side end of the respective link 6 and 9 .
In der Fig. 3 ist die Wirkungsweise einer mit einem Koppelglied 16 versehenen Radaufhängung beim Brems vorgang dargestellt. Am Radaufstandspunkt RA greift eine Bremskraft FBr an. Dadurch verschiebt sich das rad seitige Gelenk 11 des unteren Lenkers 9 um einen be stimmten Betrag nach hinten in Fahrzeuglängsrichtung. Dadurch dreht sich der Lenker 9 um das als Drehpunkt wirkende Gelenk 10, so daß sich das karosserieseitige Ende des Lenkers 9 zum Fahrzeugaufbau 15 oder der gleichen zubewegt. Dieser Weg wird innerhalb des als Gummilager ausgebildeten Gelenks 13 zurückgelegt, so daß in der Kammer 18 das Fluid verdrängt wird und in die Kammer 19 des Gelenks 12 fließt. Dadurch entsteht eine Gegenkraft am Gelenk 12, die der am radseitigen Gelenk 7 angreifenden "Aufziehkraft" entgegenwirkt. Üblicherweise ist die am radseitigen Gelenk 11 des unteren Lenkers angreifende "Aufziehkraft" bedeutend größer als die am oberen radseitigen Gelenk 7 angreifende, entgegengesetzt wirkende "Aufziehkraft". Aus diesem Grund wird bei gleichen Hebelarmen und gleichgroßen Kammern 18, 19 der obere Lenker 6 durch die auf das karosserieseitige Ende des Lenkers 6 wirkende Gegenkraft zum Fahrzeugaufbau 15 oder dergleichen hin bewegt. Ein Ausgleich von unglei chen Hebelarmen an den Lenkern 6 und 9 kann durch eine unterschiedliche Dimensionierung der Kammern 18, 19 sowie durch eine entsprechende Werkstoffwahl der elasti schen Bauteile 22 erfolgen.In Fig. 3, the operation of a provided with a coupling member 16 wheel suspension during the braking process is shown. A braking force F Br acts at the wheel contact point R A. This shifts the wheel-side joint 11 of the lower link 9 by a certain amount to the rear in the vehicle longitudinal direction. As a result, the handlebar 9 rotates about the joint 10 acting as a pivot, so that the body-side end of the handlebar 9 moves toward the vehicle body 15 or the like. This path is covered within the joint 13 designed as a rubber bearing, so that the fluid is displaced in the chamber 18 and flows into the chamber 19 of the joint 12 . This creates a counterforce on the joint 12 which counteracts the "pulling force" acting on the wheel-side joint 7 . Usually, the "pulling force" acting on the wheel-side joint 11 of the lower link is significantly greater than the "pulling force" acting on the upper wheel-side joint 7 in the opposite direction. For this reason, with the same lever arms and chambers 18 , 19 of the same size, the upper link 6 is moved toward the vehicle body 15 or the like by the counterforce acting on the body-side end of the link 6 . Compensation of uneven chen lever arms on the links 6 and 9 can be done by a different dimensioning of the chambers 18 , 19 and by an appropriate choice of materials for the elastic components 22 .
In der Fig. 5 ist eine weitere Ausführungsform einer Radaufhängung gezeigt, bei der der untere Querlenker in zwei Einzellenker 23 und 24 aufgelöst ist. Da in der gezeigten Ausführungsform die Bremskraft auf das als Gummilager ausgebildete Gelenk 25 wirkt, ist dieses mit einer Kammer 18 versehen, die mit der Kammer 19 im Gelenk 12 des oberen Lenkers 6 über die Leitung 14 in Verbindung steht.In FIG. 5 another embodiment of a wheel suspension is shown in which the lower transverse link into two individual links 23 and 24 is dissolved. Since, in the embodiment shown, the braking force acts on the joint 25 designed as a rubber bearing, it is provided with a chamber 18 which is connected to the chamber 19 in the joint 12 of the upper link 6 via the line 14 .
In einer weiteren nicht abgebildeten Ausführungsform kann auch der obere Lenker 6 in zwei Einzellenker aufgelöst werden, wobei der die Längskraft übertragende Lenker eine Kammer aufweist, die über eine Leitung mit der Kammer des entsprechenden Gelenkes des unteren Querlenkers in Verbindung steht.In a further embodiment, not shown, the upper link 6 can also be broken up into two individual links, the link transmitting the longitudinal force having a chamber which is connected via a line to the chamber of the corresponding joint of the lower wishbone.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893918359 DE3918359A1 (en) | 1989-06-06 | 1989-06-06 | Vehicle wheel suspension - has upper and lower link arms connected by coupling that forces wheel-side joints of arms to move in same direction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893918359 DE3918359A1 (en) | 1989-06-06 | 1989-06-06 | Vehicle wheel suspension - has upper and lower link arms connected by coupling that forces wheel-side joints of arms to move in same direction |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3918359A1 true DE3918359A1 (en) | 1990-12-13 |
Family
ID=6382134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893918359 Withdrawn DE3918359A1 (en) | 1989-06-06 | 1989-06-06 | Vehicle wheel suspension - has upper and lower link arms connected by coupling that forces wheel-side joints of arms to move in same direction |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3918359A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5560637A (en) * | 1992-12-02 | 1996-10-01 | Hyundai Motor Company | Suspension system for vehicle |
US5692767A (en) * | 1995-01-11 | 1997-12-02 | Toyota Jidosha Kabushiki Kaisha | Vehicle suspension having bushings with direction dependent elastic properties |
DE102009019174A1 (en) * | 2009-04-28 | 2010-11-04 | Bayerische Motoren Werke Aktiengesellschaft | Wheel suspension for two-track four-wheel motor vehicle, has wheel guiding links including support formed such that elastic rigidity of support is smaller for traction forces than for compression forces transferred through guiding links |
US7878511B2 (en) | 2006-02-10 | 2011-02-01 | Zf Friedrichshafen Ag | Wheel suspension |
EP2818343A4 (en) * | 2012-02-23 | 2015-03-04 | Toyota Motor Co Ltd | SUSPENSION DEVICE FOR VEHICLE |
DE102015211060A1 (en) * | 2015-06-16 | 2016-12-22 | Bayerische Motoren Werke Aktiengesellschaft | Suspension for a vehicle |
CN108136865A (en) * | 2015-08-03 | 2018-06-08 | 比亚乔公司 | Motor vehicles wheel suspension system, motor vehicles component, motor vehicles front wheel carrier and its motor vehicles |
WO2019016690A1 (en) * | 2017-07-21 | 2019-01-24 | Ari - Automotive Research Innovation S.A.S. Di Francesca Bianco & C. | A suspension provided with a load responsive device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3022055A1 (en) * | 1980-06-12 | 1981-12-17 | Bayerische Motoren Werke Ag | Brake compensated independent wheel suspension - has railing support arms linked to chassis by spring mounted coupling lever |
DE3721026A1 (en) * | 1986-06-27 | 1988-01-14 | Honda Motor Co Ltd | WHEEL SUSPENSION SYSTEM FOR MOTOR VEHICLES |
-
1989
- 1989-06-06 DE DE19893918359 patent/DE3918359A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3022055A1 (en) * | 1980-06-12 | 1981-12-17 | Bayerische Motoren Werke Ag | Brake compensated independent wheel suspension - has railing support arms linked to chassis by spring mounted coupling lever |
DE3721026A1 (en) * | 1986-06-27 | 1988-01-14 | Honda Motor Co Ltd | WHEEL SUSPENSION SYSTEM FOR MOTOR VEHICLES |
Non-Patent Citations (1)
Title |
---|
JP 61 169305 A.: In Patents Abstracts of Japan, M-546, Dec.17, 1986, Vol.10, No.378 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5560637A (en) * | 1992-12-02 | 1996-10-01 | Hyundai Motor Company | Suspension system for vehicle |
US5692767A (en) * | 1995-01-11 | 1997-12-02 | Toyota Jidosha Kabushiki Kaisha | Vehicle suspension having bushings with direction dependent elastic properties |
US7878511B2 (en) | 2006-02-10 | 2011-02-01 | Zf Friedrichshafen Ag | Wheel suspension |
DE102009019174A1 (en) * | 2009-04-28 | 2010-11-04 | Bayerische Motoren Werke Aktiengesellschaft | Wheel suspension for two-track four-wheel motor vehicle, has wheel guiding links including support formed such that elastic rigidity of support is smaller for traction forces than for compression forces transferred through guiding links |
DE102009019174B4 (en) * | 2009-04-28 | 2020-08-20 | Bayerische Motoren Werke Aktiengesellschaft | Suspension of a two-lane vehicle |
EP2818343A4 (en) * | 2012-02-23 | 2015-03-04 | Toyota Motor Co Ltd | SUSPENSION DEVICE FOR VEHICLE |
DE102015211060A1 (en) * | 2015-06-16 | 2016-12-22 | Bayerische Motoren Werke Aktiengesellschaft | Suspension for a vehicle |
CN108136865A (en) * | 2015-08-03 | 2018-06-08 | 比亚乔公司 | Motor vehicles wheel suspension system, motor vehicles component, motor vehicles front wheel carrier and its motor vehicles |
CN108136865B (en) * | 2015-08-03 | 2021-04-13 | 比亚乔公司 | Motor vehicle wheel suspension, wheel assembly, front wheel frame and motor vehicle |
WO2019016690A1 (en) * | 2017-07-21 | 2019-01-24 | Ari - Automotive Research Innovation S.A.S. Di Francesca Bianco & C. | A suspension provided with a load responsive device |
US11059340B2 (en) | 2017-07-21 | 2021-07-13 | Ari—Automotive Research Innovation S.A.S. Di Francesca Bianco & C. | Suspension provided with a load responsive device |
EA039136B1 (en) * | 2017-07-21 | 2021-12-09 | Ари - Аутомотиве Ресеарк Инноватьон С.А.С. Ди Франческа Бьянко Е К. | Suspension equipped with a load sensitive device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |