EP2419285A1 - Train avant pour vehicule automobile comportant une suspension a lame transversale - Google Patents
Train avant pour vehicule automobile comportant une suspension a lame transversaleInfo
- Publication number
- EP2419285A1 EP2419285A1 EP10725365A EP10725365A EP2419285A1 EP 2419285 A1 EP2419285 A1 EP 2419285A1 EP 10725365 A EP10725365 A EP 10725365A EP 10725365 A EP10725365 A EP 10725365A EP 2419285 A1 EP2419285 A1 EP 2419285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- support
- vehicle
- front axle
- axle according
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
- B60G11/36—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also helical, spiral or coil springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/14—Independent suspensions with lateral arms
- B60G2200/142—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type
- B60G2200/1422—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type the lateral arm being resilient
-
- 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
- B60G2202/11—Leaf spring
- B60G2202/114—Leaf spring transversally arranged
-
- 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
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7101—Fiber-reinforced plastics [FRP]
Definitions
- the present invention relates to a front axle for a motor vehicle, comprising a transverse blade suspension, also called integrated suspension, and a motor vehicle equipped with such a train.
- the motor vehicles comprise a front axle generally director, linked to the vehicle body, which supports the hubs of the wheels by providing both a guiding of the wheels to allow movement of the suspensions and, secondly, the rotation of the wheels when of a robbery.
- the Mac-Pherson (PMP) pseudo-front gear is the architecture that offers the best price / performance compromise. This is why this technology is very widespread among general manufacturers.
- This architecture includes an element called strut which is composed in the main of a damper and a coil spring supported on the body thereof.
- the strut provides control of the displacement of the wheel in the vertical direction relative to the ground plane on which the vehicle is moving, according to a determined force / speed law.
- the triangle is fixed on a lower part of the vehicle body called cradle, by means of two articulations which are aligned in a substantially longitudinal direction, parallel to the direction longitudinal of the vehicle. These two joints provide pivoting of the triangle during the vertical movement of the wheel.
- the front axle also includes an anti-roll bar connecting the two wheels of the train to compensate, or resume, the forces exerted independently on each wheel and which result in a force resulting from twisting of the train.
- a steering rack and its rod connect the steering control (the steering wheel) to the wheel pivot.
- a first architecture is described in document FR 2 503 054 A1. This document completely describes the concept of a transverse blade PMP train. The blade is fixed to the body at two points ensuring the spring function of an anti-roll bar.
- a second architecture which is an evolution of the first, is described in WO 8301758 A1.
- This second architecture improves the transverse blade concept by producing a composite material blade based on unidirectional glass fibers and epoxy resin with an excess thickness at the ends to compensate for the transverse and longitudinal forces to which the wheels of the front axle being subjected are subjected. braking and / or steering wheel.
- the transverse blade is fixed to the vehicle body at four points, via vertical rods.
- the blade is shaped Omega to bypass the powertrain.
- the present invention proposes a new front axle architecture comprising a suspension with a transverse blade, in which the blade is preferably made of composite material, and in which the function of recovery of the longitudinal forces due to braking, is offset from the blade.
- the blade is preferably made of composite material, and in which the function of recovery of the longitudinal forces due to braking, is offset from the blade.
- This advantage is added to those of weight gain and compactness compared to a conventional PMP train.
- the invention relates to a vehicle front train, particularly a motor vehicle, supporting each of the steering wheels of the vehicle via a wheel pivot support, said train comprising a suspension comprising a transverse blade composite material, fixed to the vehicle body, and each end portion is integrally connected to the wheel pivot support, characterized in that each end of the transverse blade is suspended under the vehicle body by a support sandwiching the end of the blade and in that a means of recovery of the longitudinal forces during braking is disposed between the support of the blade and the wheel pivot support; the end of the blade, the support and the effort recovery means defining substantially and respectively the three sides of a suspension triangle.
- the support is attached to the blade and extends transversely to it in a direction substantially parallel to the longitudinal axis of the vehicle; first and second fastening means being respectively disposed at both ends of the carrier via first and second resilient hinges for securing the carrier to the vehicle body; the first joint being adjacent to the transverse blade
- the means for taking up the longitudinal forces during braking is a rectilinear link, the ends of which are respectively fixed on the pivot support via an elastic articulation, and on the second articulation of the support.
- the means for taking up the longitudinal forces during braking is the straight bent portion of an anti-roll bar extending parallel to the transverse blade; the end part of the straight bent part of the anti-roll bar being fixed on the wheel pivot support by an elastic fixing means and the end part of the right part of the anti-roll bar, not bent, being fixed on the support, near the second articulation, by an elastic pivot connection.
- the support of the blade is also used as support for a steering rack; fastening means of the rack on the support being disposed in the vicinity of the second articulation of the support.
- each support is disposed substantially between the end portion of the blade and the longitudinal axis of the vehicle.
- the longitudinal axis of the blade is substantially centered on the axis of the wheels.
- the invention also relates to a front axle as described above.
- FIG. 1 and 2 respectively show schematic top and side views of a half-front train according to the invention
- FIG. 3 illustrates a schematic view of the rear of a half-front axle according to the invention
- FIG. 4 illustrates, in top view, a variant of a half-front axle according to the invention.
- the different figures represent a half-front right train of a vehicle referenced in space by the reference XY Z.
- the front axle being symmetrical with respect to the longitudinal axis X 'of the vehicle, only the right front half-axle is shown and described.
- the vehicle is symbolized by its longitudinal axis X 'and its vertical axis Z' perpendicular to the longitudinal axis X 'and the ground plane S on which the vehicle is moving.
- the front axle according to the invention comprises a transverse blade 1 preferably made of composite material, and extending transversely with respect to the vehicle in the Y direction.
- the longitudinal axis of the blade 1 is substantially centered on the axis of the wheels 11.
- the end portion 2 of the blade 1 is connected to the wheel pivot 3 via a pivot support 4 which integrally sandwiches the end portion 2 of the blade 1.
- the blade 1 is suspended under the body 5 of the vehicle (FIG. 2) by means of a support 6, disposed substantially between the extreme part
- the support 6 is for example constituted by two rectilinear bars of rectangular section, assembled one on the other, one of which is flat and the other is folded so as to locally grip the blade 1 to sandwich it.
- the support 6 is fixed to the body 5 of the vehicle by first and second fixing means 7 and 8, for example screws, which are respectively disposed at both ends of the support 6.
- First and second elastic joints 9 and 10, forming spacers and through which pass the attachment means, are interposed between the support 6 and the body 5.
- the fastening means 7 and 8 and the joints 9 and 10 are aligned in the longitudinal direction X and the first fixing means 7 and the second articulation 9 are adjacent to the transverse blade 1.
- the blade 1 is deformed according to the principle of a beam working in flexion bearing under the body 5 via the two joints 9 and 10.
- the spring function is then provided by the blade 1 for a symmetrical vertical travel of the wheels 11 relative to the longitudinal axis X '(pumping case) .
- the blade 1 connecting the two wheels 11 of the front axle takes a shape of "S" in the Y direction and then provides the anti-roll function.
- the function of recovery of the longitudinal forces under braking (efforts opposing the displacement of the vehicle along the X axis) is provided by a straight rod 12 which is fixed between the end portion 2 of the blade 1, on the pivot support 4, and the support 6 of the blade 1 (force opposing the movement of the vehicle along the X axis).
- the ends of the rod 12 are respectively fixed on the pivot support 4 via an elastic articulation 13, and on the second articulation 10 of the support 6.
- the steering rack 14 is fixed between and on the two blade supports 1.
- the free end of the steering rod 15 is coupled by a pivot connection known per se, to the wheel pivot 3.
- Fastening means 16 of the rack 14 on the support 6 are arranged in the vicinity of the second hinge 10.
- the blade 1 "takes up” the transverse forces imposed on the base of the wheel 11 during turns. It thus ensures a good rigidity of the wheel plane 11 facing the transverse forces symbolized by the arrow F; the rod 12 "taking up” the longitudinal forces in case of braking.
- the blade 1 works in flexion in the vertical direction Z during deflections of the wheel 11 and in traction / compression during turns.
- the blade 1 does not work in flexion in the longitudinal direction during braking.
- the dimension of the blade 1 can therefore be reduced, which makes it possible to reduce the cost thereof, a decrease which is all the greater in the case of a blade 1 made of composite material.
- the overall cost of the architecture is then reduced compared to previous solutions.
- the blade 1 is preferably made of fiberglass / epoxy resin composite material in order to allow a vertical clearance of the sufficient wheel 11 without damaging the material.
- the orientation of the fibers can be essentially transverse in order to increase the characteristics in this direction.
- FIG. 4 illustrates an alternative embodiment of a front axle according to the invention in which the means for taking up the longitudinal forces during braking, which were constituted by the rods 12, are replaced by an anti-roll bar 17.
- the anti-roll bar 17 which, in this variant, "resumes" the longitudinal forces.
- the right part 18 of the anti-roll bar 17 extends parallel to the transverse blade 1.
- the anti-roll bar 17 terminates at each of its ends by a bent right portion 19 extending substantially at 45 ° towards the front of the vehicle.
- the end portion 20 of the right bent portion 19 is fixed on the pivot support 4 by an elastic fastening means 21, for example a rubber hinge, and the right portion 18 of the anti-roll bar 17, located just before the part bent 19, is fixed on the support 6, near the second joint 10, by an elastic pivot connection 22, for example, a bearing made of rubber material.
- an elastic fastening means 21 for example a rubber hinge
- the right portion 18 of the anti-roll bar 17, located just before the part bent 19 is fixed on the support 6, near the second joint 10 by an elastic pivot connection 22, for example, a bearing made of rubber material.
- the end BS of the blade 1, the support 6 and the effort recovery means 12 or 17 define substantially and respectively the three sides of a suspension triangle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0952457A FR2944478B1 (fr) | 2009-04-15 | 2009-04-15 | Train avant pour vehicule automobile comportant une suspension a lame transversale. |
PCT/FR2010/050669 WO2010119212A1 (fr) | 2009-04-15 | 2010-04-07 | Train avant pour vehicule automobile comportant une suspension a lame transversale |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2419285A1 true EP2419285A1 (fr) | 2012-02-22 |
Family
ID=41119474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10725365A Withdrawn EP2419285A1 (fr) | 2009-04-15 | 2010-04-07 | Train avant pour vehicule automobile comportant une suspension a lame transversale |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120049482A1 (fr) |
EP (1) | EP2419285A1 (fr) |
JP (1) | JP2012523980A (fr) |
CN (1) | CN102458887B (fr) |
BR (1) | BRPI1006607A2 (fr) |
FR (1) | FR2944478B1 (fr) |
WO (1) | WO2010119212A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116034A1 (de) * | 2011-10-17 | 2013-04-18 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Radaufhängungsvorrichtung für einKraftfahrzeug |
DE102012012652A1 (de) | 2012-06-25 | 2014-01-02 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Hinterachse für ein Kraftfahrzeug |
JP7132174B2 (ja) * | 2019-05-30 | 2022-09-06 | Kyb株式会社 | サスペンション装置 |
EP4296012A4 (fr) | 2021-06-25 | 2024-12-18 | Samsung Electronics Co., Ltd. | Dispositif de robot mobile |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695791A (en) * | 1949-05-26 | 1954-11-30 | Victor Heron | Automobile spring suspension |
DE1146380B (de) * | 1960-07-23 | 1963-03-28 | Opel Adam Ag | Federnde Aufhaengung der gelenkten Vorderraeder von Kraftfahrzeugen |
JPS57135406U (fr) * | 1981-02-20 | 1982-08-24 | ||
FR2503054A1 (fr) * | 1981-04-03 | 1982-10-08 | Thimon Ets | Train de roue de vehicule |
US4422666A (en) * | 1981-08-05 | 1983-12-27 | Spring Technology, Ltd. | Suspension mechanism for automotive vehicles |
US4458918A (en) * | 1981-12-24 | 1984-07-10 | Ford Motor Company | Rear wheel suspension with a transverse leaf spring |
US4630804A (en) * | 1985-01-07 | 1986-12-23 | Ford Motor Company | Leaf spring clamp for synthetic material leaf spring |
US4614359A (en) * | 1985-03-21 | 1986-09-30 | General Motors Corporation | Vehicle wheel with height adjustment |
FR2600016B1 (fr) * | 1986-06-16 | 1988-10-21 | Bertin & Cie | Ensemble suspension de vehicule |
FR2601905B1 (fr) * | 1986-07-25 | 1990-03-02 | Renault | Suspension a lames elastiques pour vehicule automobile. |
US4768807A (en) * | 1987-06-25 | 1988-09-06 | General Motors Corporation | Wheel suspension |
US4813704A (en) * | 1988-06-20 | 1989-03-21 | Chrysler Motors Corporation | Dual strut wheel suspension |
US5062620A (en) * | 1990-08-20 | 1991-11-05 | General Motors Corporation | Flexible link and method for a vehicular suspension system |
JP2612642B2 (ja) * | 1991-01-17 | 1997-05-21 | 本田技研工業株式会社 | 横置きリーフスプリング式懸架装置 |
FR2734231B1 (fr) * | 1995-05-15 | 1997-08-14 | Peugeot | Agencement d'un train de roues avant sur une caisse de vehicule |
DE19533803A1 (de) * | 1995-09-13 | 1997-03-20 | Porsche Ag | Radaufhängung für ein Kraftfahrzeug mit einer radführenden Blattfeder |
DE19721878A1 (de) * | 1997-05-26 | 1998-12-10 | Porsche Ag | Vorderachse für ein Kraftfahrzeug |
US6189904B1 (en) * | 1998-10-16 | 2001-02-20 | General Motors Corporation | Vehicle wheel suspension with transverse leaf spring and mounts providing a high roll ratio |
EP1080953A1 (fr) * | 1999-09-03 | 2001-03-07 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Suspension de roue d'un véhicule automobile à ressort à lame guidant la roue |
FR2804375B1 (fr) * | 2000-01-28 | 2002-04-12 | Peugeot Citroen Automobiles Sa | Train avant pour vehicule automobile a lame de ressort transversale |
SE525912C2 (sv) * | 2000-05-18 | 2005-05-24 | Volvo Personvagnar Ab | Hjulupphängning för ett fordon |
JP2003341330A (ja) * | 2002-05-30 | 2003-12-03 | Mitsubishi Fuso Truck & Bus Corp | サスペンション |
KR100518431B1 (ko) * | 2002-05-30 | 2005-09-29 | 미츠비시 후소 트럭 앤드 버스 코포레이션 | 현가 장치 |
US7971890B2 (en) * | 2007-07-16 | 2011-07-05 | Reyco Granning, Llc | Independent suspension assembly |
-
2009
- 2009-04-15 FR FR0952457A patent/FR2944478B1/fr not_active Expired - Fee Related
-
2010
- 2010-04-07 BR BRPI1006607A patent/BRPI1006607A2/pt not_active IP Right Cessation
- 2010-04-07 CN CN201080026455.0A patent/CN102458887B/zh not_active Expired - Fee Related
- 2010-04-07 JP JP2012505200A patent/JP2012523980A/ja not_active Withdrawn
- 2010-04-07 EP EP10725365A patent/EP2419285A1/fr not_active Withdrawn
- 2010-04-07 WO PCT/FR2010/050669 patent/WO2010119212A1/fr active Application Filing
- 2010-04-07 US US13/264,609 patent/US20120049482A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2010119212A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2944478B1 (fr) | 2011-04-15 |
WO2010119212A1 (fr) | 2010-10-21 |
BRPI1006607A2 (pt) | 2016-04-19 |
FR2944478A1 (fr) | 2010-10-22 |
CN102458887B (zh) | 2014-04-30 |
US20120049482A1 (en) | 2012-03-01 |
JP2012523980A (ja) | 2012-10-11 |
CN102458887A (zh) | 2012-05-16 |
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Legal Events
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B60G 11/08 20060101ALI20121204BHEP Ipc: B60G 21/05 20060101ALI20121204BHEP Ipc: B60G 7/00 20060101AFI20121204BHEP Ipc: B60G 11/36 20060101ALI20121204BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20130514 |