WO2008061618A1 - Suspension à roues indépendantes pour véhicule automobile avec réglage actif du pincement - Google Patents

Suspension à roues indépendantes pour véhicule automobile avec réglage actif du pincement Download PDF

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Publication number
WO2008061618A1
WO2008061618A1 PCT/EP2007/009566 EP2007009566W WO2008061618A1 WO 2008061618 A1 WO2008061618 A1 WO 2008061618A1 EP 2007009566 W EP2007009566 W EP 2007009566W WO 2008061618 A1 WO2008061618 A1 WO 2008061618A1
Authority
WO
WIPO (PCT)
Prior art keywords
arm
wheel
vehicle
bearing
wheel carrier
Prior art date
Application number
PCT/EP2007/009566
Other languages
German (de)
English (en)
Inventor
Gert Bitz
Dirk Ehrlich
Original Assignee
Gm Global Technology Operations, Inc.
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 Gm Global Technology Operations, Inc. filed Critical Gm Global Technology Operations, Inc.
Publication of WO2008061618A1 publication Critical patent/WO2008061618A1/fr

Links

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/18—Multilink suspensions, e.g. elastokinematic arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/462—Toe-in/out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • 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
    • B60G2204/147—Mounting of suspension arms on the vehicle engine body
    • 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
    • B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/121—Constructional features of arms the arm having an H or X-shape

Definitions

  • the present invention is in the field of vehicle technology and relates to an independent suspension for Mehrfachanlenkung a wheel carrier for a rear wheel on a substructure of a vehicle body.
  • a track link articulated on the wheel carrier, the track of the rear wheel when compression and rebound, and the occurrence of longitudinal and lateral forces are given, with a given interpretation of Mehrfachanlenkung the wheel carrier, the track adjustment of the axle geometry and the forces acting on the rear wheel forces ,
  • Such a tracking adjustment can influence the self-steering behavior of the motor vehicle, which is desirable, for example, when a motor vehicle becomes unstable during cornering, in particular under load changes or during braking on a roadway with different friction coefficients.
  • a track adjustment of the rear wheel caused by a control arm and the thereby changed own steering behavior of the vehicle for certain driving situations may be well suited, such as when the rear wheels are cornered in a cornering, but in different driving situations, especially in others Driving speeds that affect driving feel and / or driving safety rather.
  • a once selected design of the multiple articulation of the wheel carrier does not allow a driving situation-dependent, in particular speed-dependent variability of the track adjustment.
  • the object of the present invention is to provide an independent suspension for a motor vehicle for Mehrfachanlenkung a Häradlys atetzunter terbei a vehicle body available in which the above-mentioned disadvantages do not occur and a driving situation-dependent, especially speed-dependent lane adjustment of the rear wheel is possible ,
  • an independent wheel suspension for a motor vehicle which serves for the multiple articulation of a rear wheel carrier, optionally with the interposition of a subframe, on a vehicle substructure of a vehicle body.
  • the independent suspension according to the invention is characterized essentially by the fact that an actuator mounted on the vehicle and operatively actuated by the actuator is arranged, which acts on the wheel carrier in such a way that by actuating it a position of the wheel carrier relative to
  • Vehicle longitudinal direction is changeable.
  • the actuator engages on the wheel carrier, that by actuation of the actuator, the position of the Radffy furnitureen Anlenkstelle the actuator is changeable at least in the vehicle transverse direction, in order to be able to actively adjust the track of the rear wheel in this way.
  • the actuator may be, for example, an electro-mechanical or electro-hydraulic actuator.
  • the actuator may in particular be mounted pivotably on the vehicle substructure or subframe or on the vehicle body.
  • a control / regulation of the actuator is effected by a controller connected to the actuator, which controls or regulates the actuator on the basis of sensor data for detecting a driving situation, such as a yaw rate of the motor vehicle or a steering angle.
  • a control / regulation of the actuator takes place so quickly, for example in the range of tenths of a second, that the track of the rear wheel can be adjusted in dependence on speed and driving situation.
  • the independent suspension according to the invention can thus be achieved in an advantageous manner that the track of the rear wheel is actively adjusted according to a respective Fahrsiutation or driving speed in the desired manner, thereby increasing the driving safety and to improve the driving experience.
  • a correspondingly fast regulation can prevent or delay the vehicle from breaking out.
  • this may comprise a so-called H-arm handlebar for the articulation of the rear wheel carrier. Furthermore, a (upper) wishbone extending essentially in the vehicle transverse direction is provided, which is arranged above the H-arm handlebar.
  • the location "upper” handlebar or “lower” handlebar refer to the relative position, which this occupy both handlebars in the usual installation position to each other.
  • the upper control arm is pivotally mounted towards the vehicle center (ie, on the vehicle side) on the vehicle subframe or subframe by means of a link bearing formed, for example, as an elastic bearing bush or joint. Radyes wood (that is, on the side of the wheel carrier) of the upper arm is pivotally mounted by means of an example designed as an elastic bushing or joint wheel carrier arm bearing on the wheel.
  • the upper wishbone allows at its vehicle and wheel carrier articulation points a one or rebound movement of a rear wheel supported by the rear wheel of the motor vehicle.
  • the wheel carrier-arm bearing of the upper arm is arranged so that it is suitable to absorb forces acting in particular in the vehicle transverse direction.
  • the wheel carrier arm bearing of the upper arm is arranged approximately above the wheel axle of the rear wheel.
  • the lower H-arm link advantageously comprises a section extending essentially in the vehicle longitudinal direction, referred to below as “trailing arm section”, and at least one section extending substantially in the vehicle transverse direction, hereinafter referred to as "transverse link section".
  • the trailing arm section and the wishbone section are formed by sections of the H-arm link.
  • the H-arm handlebar is composed of individual parts which are rigidly connected to one another.
  • the trailing arm portion and the wishbone portion of the H-arm arm are pivotally mounted on the base, optionally with the interposition of the subframe, for example by means of a trained as an elastic bearing bush or joint arm bearing.
  • Radyes cop is the H-arm handlebar by means of at least a first and a second wheel carrier arm bearing, which, for example, as elastic bushings or joints are designed pivotally mounted on the wheel.
  • the H-arm handlebar allows at its vehicle and wheel carrier articulation points a rebound or rebound movement of a rear wheel carried by the rear wheel carrier.
  • the first wheel carrier arm bearing is advantageously arranged so that, based on the direction of travel of the motor vehicle, behind the wheel axle of the rear wheel located.
  • H-arm handlebar commonly used by those skilled in the art for this type of handlebars is derived from the particular shape of the handlebar: the wishbone portion and trailing arm portion together form the upper part of the "H” including the dash. wherein the right vertical stroke of the "H” corresponds to the wishbone section, while the dash and the left vertical stroke of the "H” correspond to the trailing arm section.
  • the two lower vertical bars of the "H” are formed by extending in the vehicle transverse direction transverse connecting portions of the H-arm handlebar, which serve the articulation of the H-arm arm on the wheel by means of the first and second Raditati-link bearing. These cross-connection sections are only optional. Although the "H” in the H-arm handlebar is severely deformed, this term is used by those skilled in the art of chassis technology.
  • the first and / or the second wheel carrier arm bearing of the H-arm arm can by means of a substantially transverse to the vehicle transverse direction connecting portion with the
  • H-arm handlebars be connected.
  • the second wheel carrier-arm bearing of the H-arm arm is arranged approximately below the wheel axle of the rear wheel. If the wheel carrier arm bearing of the upper arm is located approximately above the wheel axis of the rear wheel, the second wheel carrier arm bearing of the lower H arm arm and the wheel carrier arm bearing of the upper arm are arranged approximately in a vertical line, which has the advantage that an approximately vertically oriented "pivot axis" is formed by the two arm bearings for the wheel by which the wheel can be pivoted so as to adjust the wheel track, while creating a camber or change at the same time.
  • the trailing arm portion of the H-arm arm is not pivotally mounted on the subframe, but directly on the substructure of the vehicle body by means of a trained example as an elastic bearing bush or joint arm bearing.
  • the axis of rotation of the steering bearing is directed so that it is employed at a non-zero angle to the vehicle longitudinal direction to the vehicle outside.
  • the wheel carrier forms a substantially in the vehicle longitudinal direction extending Radmonstrebe, which acts on the operable by the actuator actuator.
  • the invention also extends to a motor vehicle equipped with independent rear wheel suspensions as described above.
  • Fig. 1 is a schematic perspective view obliquely from above of an embodiment of the independent suspension according to the invention for a rear wheel of a motor vehicle.
  • an independent wheel suspension for a rear wheel of a motor vehicle which is designated overall by reference numeral 1, comprises a lower H-arm handlebar, generally designated by reference numeral 2, which has a trailing arm section 3 and 3 extending substantially in the vehicle longitudinal direction (x) a substantially in the vehicle transverse direction (y) extending wishbone section 4 comprises.
  • the H-arm link 2 is pivotally mounted with its trailing arm portion 3 by means of two for example designed as an elastic bushings or joints arm bearings 7, 9 on a wheel carrier 5.
  • the trailing arm section 3 is pivotally mounted on the wheel carrier 5 by a first link bearing 7, which is designed, for example, as an elastic bearing bush or joint, and which is formed in the vehicle transverse direction (y) in the form of a pair of struts Transverse connecting portion 6 of the trailing arm portion 3 is connected to the H-arm link 2.
  • the first link bearing 7 is located, based on the direction of travel of the motor vehicle, behind (or alternatively in front of) the wheel axle 10 of the rear wheel.
  • trailing arm section 3 is mounted on the wheel carrier 5 by means of a second link bearing 9 designed, for example, as an elastic bearing bush or joint, which is connected to the H-arm link 2 via a transverse connecting section 8 of the longitudinal link section 3 extending in the vehicle transverse direction (y).
  • the second link 9 is located substantially below the wheel axle 10 of the rear wheel.
  • the wishbone section 4 of the H-arm link 2 extends over the wishbone section 4 of the H-arm link 2 with a trained example as an elastic bearing bush or joint arm bearing on the subframe 11 (or alternatively on the substructure) pivotably mounted about a substantially parallel to the vehicle longitudinal direction (x) pivot axis.
  • the arm bearing of the wishbone section 4 allows a rebound or rebound movement of the rear wheel.
  • the subframe 11 can be mounted on a plurality of elastic bushings 12 on the base of the vehicle body, not shown in Fig. 1. In Fig. 1, only two such bearing bushes 12 are shown.
  • the trailing arm section 3 of the H-arm link 2 has a curved shape. More precisely, the trailing arm section 3, starting from its bearing points on the wheel carrier 5 towards the front of the vehicle, has a handlebar section which is set towards the center of the vehicle and adjoins armrest sections which are set towards the vehicle outside.
  • the trailing arm section 3 is formed by means of a link bearing 13 designed, for example, as an elastic bearing bush or joint Vehicle underbody of the vehicle body stored. Due to the shape of the trailing arm section 3 of the H-arm link 2, the pivot axis of the link bearing 13 is directed so that it is employed in the direction of the vehicle outside, so, viewed in the direction of travel of the motor vehicle, a non-zero angle to the vehicle longitudinal direction (x ) occupies.
  • Trailing arm section 3 the wishbone section 4, the cross-connecting section 6 and the cross-connecting section
  • the independent suspension 1 further comprises an upper transverse link 14, which extends substantially in the vehicle transverse direction (y).
  • the upper transverse link 14 is pivotably mounted on the subframe 11 (or alternatively substructure) via a link bearing 15, for example designed as an elastic bearing bush or joint.
  • the arm bearing 15 allows a pivoting movement of the upper arm 14 about a substantially parallel to the vehicle longitudinal direction (x) lying pivot axis, so that an input or rebound movement of the rear wheel is made possible.
  • Rad- carrier side of the upper arm 14 is pivotally mounted by a example designed as an elastic bushing or joint arm bearing 16 on the wheel.
  • the wheel carrier side arm bearing 16 of the upper arm 14 is located approximately above the wheel axle 10 of the rear wheel, so that the wheel carrier side arm bearing 16 of the upper arm 14 and the second arm bearing 9 of the trailing arm section 3 are arranged in alignment approximately in a vertical line.
  • An input or rebound movement of the rear wheel is sprung by an elastic axle spring 17 which is supported (for example) on the H-arm link 2.
  • a damper 18 is arranged, which is mounted (for example) on the wheel carrier 5.
  • the independent suspension comprises a substantially in vehicle transverse direction (y) extending tie rod 19 which is operatively coupled to an actuator 22 and actuated by the actuator ("active tie rod”).
  • the tie rod 19 is connected by means of a pivot bearing 20 to a substantially in the vehicle longitudinal direction extending Radismestrebe 23 of the
  • Wheel carrier 5 pivotally mounted, wherein the point of articulation of the tie rod 19, relative to the direction of travel of the motor vehicle, as exemplified in Fig. 1, is arranged behind the wheel axle 10 of the rear wheel. Alternatively, it could also be arranged in front of the wheel axle 10 of the rear wheel.
  • the actuator 22 is pivotally mounted on the vehicle side by means of a pivot bearing 21 on the subframe 11.
  • the pivot bearing 21, by which the actuator is pivotally mounted on the subframe allows pivoting of the actuator 22 about a substantially horizontal pivot axis.
  • the active tie rod thus consists of an example, electro-hydraulic or electro-mechanical actuator 22 and the Track rod 19 which is so operatively coupled to the actuator, that the position of the pivot point 20 of the tie rod 19 on the Radehrstrebe 23 of the wheel carrier 5 substantially in the vehicle transverse direction (y) can be adjusted to thereby adjust the track of the rear wheel in a suitable manner ,
  • the double arrow in Fig. 1 the adjustment of the track in the vehicle transverse direction (y) is indicated.
  • the track of the rear wheel can be adjusted by the active tie rod, without causing a fall of the rear wheel or change.
  • the track of the rear wheel can be desirably controlled on the basis of a plurality of sensor data such as a yaw rate or a steering angle Depending on the driving situation, one (fast) Control preferably takes place in the range of tenths of a second.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne une suspension à roues indépendantes (1) pour l'articulation multiple d'un support de roue (5) au soubassement de la carrosserie d'un véhicule automobile, qui comprend un actionneur (22) monté côté véhicule et un élément d'actionnement (19) qui peut être actionné par l'actionneur (22) et qui agit sur le support de roue (5) de telle sorte que son actionnement permet de modifier une position du support de roue (5) par rapport à la direction longitudinale du véhicule.
PCT/EP2007/009566 2006-11-23 2007-11-05 Suspension à roues indépendantes pour véhicule automobile avec réglage actif du pincement WO2008061618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006055288.1 2006-11-23
DE200610055288 DE102006055288A1 (de) 2006-11-23 2006-11-23 Einzelradaufhängung für Kraftfahrzeug mit aktiver Spurverstellung

Publications (1)

Publication Number Publication Date
WO2008061618A1 true WO2008061618A1 (fr) 2008-05-29

Family

ID=38924471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/009566 WO2008061618A1 (fr) 2006-11-23 2007-11-05 Suspension à roues indépendantes pour véhicule automobile avec réglage actif du pincement

Country Status (2)

Country Link
DE (1) DE102006055288A1 (fr)
WO (1) WO2008061618A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136095A1 (fr) * 2009-05-26 2010-12-02 Gm Global Technology Operations, Inc Essieu antivibratile pour véhicule à moteur
WO2014202300A1 (fr) * 2013-06-19 2014-12-24 Zf Friedrichshafen Ag Suspension dirigeable
US11840142B2 (en) 2010-08-03 2023-12-12 Polaris Industries Inc. Side-by-side vehicle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010041407A1 (de) 2010-09-27 2012-03-29 Zf Friedrichshafen Ag Radaufhängung eines Kraftfahrzeugs
DE102011007283A1 (de) * 2011-04-13 2012-10-18 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug-Einzelradaufhängung für ein geringfügig lenkbares Hinterrad eines zweispurigen Fahrzeugs
DE102011077751A1 (de) * 2011-06-17 2012-12-20 Bayerische Motoren Werke Aktiengesellschaft Einzelradaufhängung eines zumindest geringfügig lenkbaren Hinterrads eines zweispurigen Fahrzeugs
DE102018201670B4 (de) 2018-02-05 2020-06-04 Ford Global Technologies, Llc Einzelradaufhängungsvorrichtung mit aktiver Spursteuerung eines Hinterrads eines Kraftfahrzeugs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323024A1 (de) * 1992-07-09 1994-01-13 Mazda Motor Aufhängungssystem für Kraftfahrzeuge
EP0628437A1 (fr) * 1993-06-07 1994-12-14 Toyota Jidosha Kabushiki Kaisha Demi-train de suspension à triangles superposés
EP0854055A2 (fr) * 1997-01-21 1998-07-22 Ford Global Technologies, Inc. Suspension indépendante pour un véhicule à roues
DE19811903A1 (de) * 1997-03-21 1998-09-24 Honda Motor Co Ltd Radaufhängungssystem
EP1422081A2 (fr) * 2002-11-22 2004-05-26 F.Tech Incorporation Suspension pour véhicule
EP1700721A1 (fr) * 2005-03-11 2006-09-13 Audi Ag Dispositif de réglage de la longueur variable d'un bras
EP1870263A2 (fr) * 2006-06-22 2007-12-26 Audi Ag Suspension de roue de véhicule pour une roue arrière fixe d'un véhicule automobile en particulier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827039A1 (de) * 1988-08-10 1990-02-15 Bayerische Motoren Werke Ag Vorrichtung zur radstellungsaenderung von kraftfahrzeugraedern
DE19506413A1 (de) * 1995-02-24 1996-08-29 Opel Adam Ag Hinterachse für ein Kraftfahrzeug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323024A1 (de) * 1992-07-09 1994-01-13 Mazda Motor Aufhängungssystem für Kraftfahrzeuge
EP0628437A1 (fr) * 1993-06-07 1994-12-14 Toyota Jidosha Kabushiki Kaisha Demi-train de suspension à triangles superposés
EP0854055A2 (fr) * 1997-01-21 1998-07-22 Ford Global Technologies, Inc. Suspension indépendante pour un véhicule à roues
DE19811903A1 (de) * 1997-03-21 1998-09-24 Honda Motor Co Ltd Radaufhängungssystem
EP1422081A2 (fr) * 2002-11-22 2004-05-26 F.Tech Incorporation Suspension pour véhicule
EP1700721A1 (fr) * 2005-03-11 2006-09-13 Audi Ag Dispositif de réglage de la longueur variable d'un bras
EP1870263A2 (fr) * 2006-06-22 2007-12-26 Audi Ag Suspension de roue de véhicule pour une roue arrière fixe d'un véhicule automobile en particulier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136095A1 (fr) * 2009-05-26 2010-12-02 Gm Global Technology Operations, Inc Essieu antivibratile pour véhicule à moteur
US11840142B2 (en) 2010-08-03 2023-12-12 Polaris Industries Inc. Side-by-side vehicle
WO2014202300A1 (fr) * 2013-06-19 2014-12-24 Zf Friedrichshafen Ag Suspension dirigeable
US10035393B2 (en) 2013-06-19 2018-07-31 Zf Friedrichshafen Ag Steerable wheel suspension

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