WO2004103802A2 - Essieu souple arriere a actionneur et vehicule corrrespondant - Google Patents
Essieu souple arriere a actionneur et vehicule corrrespondant Download PDFInfo
- Publication number
- WO2004103802A2 WO2004103802A2 PCT/FR2004/001230 FR2004001230W WO2004103802A2 WO 2004103802 A2 WO2004103802 A2 WO 2004103802A2 FR 2004001230 W FR2004001230 W FR 2004001230W WO 2004103802 A2 WO2004103802 A2 WO 2004103802A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- points
- articulation
- vehicle
- actuator
- arms
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/146—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by comprising means for steering by acting on the suspension system, e.g. on the mountings of the suspension arms
-
- 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
- B60G21/051—Trailing arm twist beam axles
- B60G21/052—Mounting means therefor
- B60G21/053—Mounting means therefor adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/21—Trailing arms connected by a torsional beam, i.e. twist-beam axles
-
- 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
- B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
-
- 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
- B60G2202/13—Torsion spring
- B60G2202/136—Twist-beam type arrangement
- B60G2202/1362—Twist-beam type arrangement including a second torsional element, e.g. second beam, stabiliser bar or tube
-
- 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
- B60G2204/1434—Mounting of suspension arms on the vehicle body or chassis in twist-beam axles arrangement
-
- 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
- B60G2204/4106—Elastokinematic mounts
-
- 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
- B60G2204/421—Pivoted lever mechanisms for mounting suspension elements, e.g. Watt linkage
Definitions
- the invention relates to a flexible rear axle with actuator for a motor vehicle and the corresponding vehicle.
- the invention is more particularly intended for vehicles with four steered wheels.
- a flexible rear axle of a vehicle generally comprises two longitudinal oscillating arms which each carry a wheel at one of their ends, and which are articulated at their other end on the body of the vehicle.
- Elastic damping means bearing on the arms elastically support the bodywork and an elastically torsionally deformable anti-roll crossbar is rigidly connected at its ends to the two arms.
- the wheel deflection is defined as the angle formed between the wheel plane and the longitudinal plane of the vehicle, in a horizontal plane.
- a clamp when turning, when the front of the wheel moves inwards (respectively outside), this is called a clamp (respectively opening).
- cornering the rear wheels of a vehicle are subjected to lateral forces in the direction of the turn.
- a flexible axle when turning to the right, respectively to the left, the left outer wheel, respectively right, tends to take the opening.
- Such steering of the wheels is a factor contributing to reducing the stability of the vehicle.
- Four-wheel drive vehicles have a device for controlling the rotation of the rear wheels when cornering to improve stability.
- multi-link axles are generally used.
- the latter however, have a large size which may prove incompatible with the architecture of the vehicle, for example the presence of a spare tire. They also have the disadvantage of being heavy and more expensive than a flexible axle.
- the invention aims to overcome these drawbacks by proposing a flexible rear axle of simple design, the arms of which can be driven in rotation, with a small amplitude, during a turn in the same direction as the front wheels. The rotation of the arms causes the wheels to rotate in the same direction, thereby improving the stability of the vehicle.
- the structure of a flexible axle makes it possible to disengage from the space constraints of multi-link axles, for example to free a housing for a spare wheel.
- the object of the invention relates to a flexible rear axle for a motor vehicle comprising two longitudinal oscillating arms, each arm being articulated to a wheel support at its end directed towards the rear of the vehicle, and the other of which front end is connected to the vehicle body, said arms being connected by a cross member, characterized in that the front end of the left swing arm, respectively right, is connected to the body via a left spreader, respectively right, each lifting beam being connected to rotate in rotation about a substantially vertical axis at said front end and to the bodywork, and in that an actuator connects the left and right lifting beams so as to cause the pivoting of each arm in the same direction relative to a substantially vertical axis.
- the spreaders have a shape such that said articulation points Ag, Ad are located at a distance from the oscillating arms, towards the outside of the vehicle . This configuration improves the performance of the axle.
- Ng, Nd being the points of articulation of the left and right spreaders with the respective front ends of the arms
- the distance between the points Ag and Ng is substantially identical to that between the points Ad and Nd
- the points Ag, Ng and Ad, Nd are symmetrical with respect to a vertical plane extending in the longitudinal direction X of the vehicle. This arrangement contributes to obtaining a symmetrical behavior of the spreaders and the swinging arms.
- Ng, Nd being the points of articulation of the left and right spreaders with the respective front ends of the arms
- Vg, Vd being the points of articulation of the left and right spreaders with the ends of the actuator
- Kg, Kd being the centers of rotation of the left and right wheels of the vehicle respectively
- the lines passing through Ag, Ng on the one hand and Ad, Nd on the other hand intersect substantially on or near the middle part of the segment connecting the centers Kg, Kd.
- Vg, Vd being the points of articulation of the left and right horns with the ends of the actuator
- Ng, Nd being the points of articulation of the left and right horns at the front end of the respective arm
- the points of articulation Ng, Nd are located on either side of the straight line connecting the points of articulation Vg, Vd.
- each articulation point Ng, Nd of a spreader at the front end of the respective arm is located at the same distance d from the straight line connecting the articulation points Vg, Vd. This arrangement contributes to the symmetrical behavior of the axle during impacts suffered by the left or right wheel.
- the joints Ng, Nd of each spreader at the front end of the respective arm are very rigid bearings.
- Such bearings allow rotation around a substantially vertical axis, the other degrees of freedom being very limited. Good roll support of the vehicle body can thus be obtained.
- the actuator is a jack. It can then be controlled by a motor.
- the invention also relates to a motor vehicle comprising a rear axle according to the invention and an actuator control device.
- a flexible axle 10 according to the invention is described with reference to the figure.
- the X and Y axes respectively represent the longitudinal and transverse directions of the vehicle, the Z axis representing the vertical direction.
- the X axis is directed towards the rear of the vehicle.
- the axle 10 includes two left and right longitudinal swing arms 12g and 12d. Each arm 12g, 12d is connected by its end 14 directed towards the rear of the vehicle to a wheel support 16 on which is mounted a wheel 15. In the figure, the wheel 15 and the wheel support 16 are represented diagrammatically by features. References Kg and
- Kd denote the centers of rotation of the left and right wheels respectively.
- the arrangement of the wheel support, the wheel and the arm oscillating is classic, as well as the connections between these elements, they will therefore not be detailed here.
- the other end 18 of the arms 12g, 12d, directed towards the front of the vehicle, is connected to the vehicle body (not shown).
- the two arms 12g, 12d are articulated on the bodywork around the same horizontal axis of rotation (not shown), extending in the transverse direction Y.
- the cross-member 20 has, for example, a V-shaped profile lying, the opening of which is directed towards the front of the vehicle.
- An anti-roll bar 22 connected to the arms 12g, 12d can be placed in the profile of the cross member 20. This bar is shown in broken lines in the figure.
- the left arm 12g is articulated to a left lifter 24g, respectively right 24d.
- the joints Ng, Nd of the left and right horns to the left 12g and right 12d arms respectively are produced by very rigid bearings allowing rotation about a substantially vertical axis. These joints Ng, Nd are located at the front ends 18 of the arms 12g, 12d.
- the left spreader 24g, respectively right 24d, is articulated to the vehicle body by an articulation Ag, respectively Ad.
- These articulations Ag, Ad are the same as those existing on standard flexible axles.
- Each spreader 24g, 24d will therefore be able to pivot around the points Ag, Ad which are fixed relative to the body of the vehicle.
- An actuator 26 connects the left spreaders 24g and right 24d, each spreader being able to pivot relative to the actuator about a substantially vertical axis.
- the actuator articulation points on the left 24g and right 24d horns are designated by the references
- the actuator 26 is connected so as to cause the pivoting arms 12g, 12d to pivot in the same direction.
- the oscillating arms 12g, 12d generally being of the same length, the straight line passing through the points Ng, Nd extends in the transverse direction Y of the vehicle, and is substantially parallel to the right passing through the points Ag, Ad of articulation to the body. Under these conditions, the spreaders, and therefore the arms, can pivot in the same direction under the effect of the actuator if the line passing through the points Vg, Vd and the line passing through the points Ag, Ad are intersecting.
- the spreaders 24g, 24d are configured so that these points Ag, Ad are located at a distance from the respective oscillating arm 12g, 12d, towards the outside of the vehicle.
- the lines passing through the points Ag, Ng, on the one hand and Ad, Nd on the other hand intersect substantially in the middle of the segment connecting the wheel centers Kg, Kd.
- the points of articulation Ng, Nd are located on either side of the straight line passing through the points Vg, Vd, at the same distance d from the latter.
- the angle between the lines (AgNg) and (AdNd) results from the lateral position of the articulation points Ag, Ad, as well as from the length of the arms 12g, 12d. It can for example be of the order of 120 to
- the distance d can for example be of the order of 80 mm. Of course, other values can be used depending on the geometry of the axle and its dimensions.
- the left spreader 24g has an elongated bent shape, the articulation points Ag, Vg being located near the ends, and the articulation point Ng, being close to the center of the spreader.
- the right spreader 24d has a substantially triangular shape, the articulation points Ag, Nd, Vd being located near the vertices, in this order in a clockwise direction.
- the distance between the points Ag and Ng is substantially identical to that between the points Ad and Nd, and the points Ag, Ng and Ad, Nd are symmetrical with respect to a vertical plane s 'extending in the longitudinal direction X of the vehicle.
- This distance can for example be of the order of 80 mm.
- the axle according to the invention When the axle according to the invention is mounted in a vehicle, the latter comprises a control device 28 connected to the actuator and making it possible to control it.
- the control device 28 can receive information relating to the operation of the vehicle, such as the turning of the front wheels, in function of which can be determined the piloting of the actuator and consequently the pivoting of the arms and the turning of the rear wheels.
- the actuator 26 is a jack driven by a motor 30 shown schematically in the figure.
- the control device actuates the jack via the motor.
- the axle works as follows. An extension of the actuator 26 will cause a slight rotation of the left and right spreaders around the points Ag, Ad, in a clockwise direction. This rotation will cause a slight pivoting of the points Ng and Nd in the same direction (to the left of the figure), which will in turn cause a slight pivoting of the oscillating arms in the same direction relative to a substantially vertical axis. Due to their connection to the swinging arms, the wheel supports 16, and therefore the wheels 15, will pivot in the same direction. Similarly, the retraction of the actuator will cause the spreaders to rotate anti-clockwise, causing the wheels 15 to pivot in the same direction (to the right in the figure).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04742774A EP1625065A2 (fr) | 2003-05-20 | 2004-05-19 | Essieu souple arriere a actionneur et vehicule correspondant |
JP2006530366A JP2007500653A (ja) | 2003-05-20 | 2004-05-19 | アクチュエータを有する柔軟なリアアクスル及び対応する自動車 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR03/06041 | 2003-05-20 | ||
FR0306041A FR2855143B1 (fr) | 2003-05-20 | 2003-05-20 | Essieu souple arriere a actionneur et vehicule correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004103802A2 true WO2004103802A2 (fr) | 2004-12-02 |
WO2004103802A3 WO2004103802A3 (fr) | 2005-02-03 |
Family
ID=33396598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/001230 WO2004103802A2 (fr) | 2003-05-20 | 2004-05-19 | Essieu souple arriere a actionneur et vehicule corrrespondant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1625065A2 (fr) |
JP (1) | JP2007500653A (fr) |
KR (1) | KR20060018213A (fr) |
FR (1) | FR2855143B1 (fr) |
WO (1) | WO2004103802A2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008002524A1 (de) * | 2008-06-19 | 2009-12-24 | Zf Friedrichshafen Ag | Stabilisator für ein Nutzfahrzeug |
DE102011110697A1 (de) * | 2011-08-16 | 2013-02-21 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Verbundlenkervorrichtung für ein Kraftfahrzeug |
DE202014103377U1 (de) | 2014-07-22 | 2014-07-30 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
DE102014214229A1 (de) | 2014-07-22 | 2016-01-28 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
DE102014214232A1 (de) | 2014-07-22 | 2016-01-28 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR1006455B (el) * | 2008-06-25 | 2009-06-22 | Αθανασιου Δημητριος Χατζηκακιδης | Παραμετρικο συστημα πλαισιου για οχηματα σχηματιζομενο απο τεσσερα στοιχεια αναρτησεως με εγκαρσια ραβδο στρεψεως και ομοαξονικο συστημα αποσβεστηρα μεσα σε φατνωμα που επιτρεπει την αποθηκευση κεντρικα βαρεων στοιχειων (οπως μπαταριες) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63291775A (ja) * | 1987-05-23 | 1988-11-29 | Mitsubishi Motors Corp | 車両用前後輪操舵装置 |
EP0439978A1 (fr) * | 1990-01-29 | 1991-08-07 | Automobiles Peugeot | Essieu arrière de véhicule automobile comportant une traverse montée pivotante par rapport à la caisse et véhicule équipé d'un tel essieu |
JPH0516832A (ja) * | 1991-07-18 | 1993-01-26 | Toyota Motor Corp | 操舵機構付きツイストビーム式リヤサスペンシヨン |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR880010971A (ko) * | 1987-03-23 | 1988-10-25 | 나까무라 켄조 | 4륜 조타장치 |
-
2003
- 2003-05-20 FR FR0306041A patent/FR2855143B1/fr not_active Expired - Fee Related
-
2004
- 2004-05-19 JP JP2006530366A patent/JP2007500653A/ja active Pending
- 2004-05-19 WO PCT/FR2004/001230 patent/WO2004103802A2/fr not_active Application Discontinuation
- 2004-05-19 KR KR1020057019575A patent/KR20060018213A/ko not_active Application Discontinuation
- 2004-05-19 EP EP04742774A patent/EP1625065A2/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63291775A (ja) * | 1987-05-23 | 1988-11-29 | Mitsubishi Motors Corp | 車両用前後輪操舵装置 |
EP0439978A1 (fr) * | 1990-01-29 | 1991-08-07 | Automobiles Peugeot | Essieu arrière de véhicule automobile comportant une traverse montée pivotante par rapport à la caisse et véhicule équipé d'un tel essieu |
JPH0516832A (ja) * | 1991-07-18 | 1993-01-26 | Toyota Motor Corp | 操舵機構付きツイストビーム式リヤサスペンシヨン |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0131, no. 18 (M-806), 23 mars 1989 (1989-03-23) & JP 63 291775 A (MITSUBISHI MOTORS CORP; others: 01), 29 novembre 1988 (1988-11-29) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 288 (M-1423), 3 juin 1993 (1993-06-03) -& JP 05 016832 A (TOYOTA MOTOR CORP), 26 janvier 1993 (1993-01-26) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008002524A1 (de) * | 2008-06-19 | 2009-12-24 | Zf Friedrichshafen Ag | Stabilisator für ein Nutzfahrzeug |
CN102083643A (zh) * | 2008-06-19 | 2011-06-01 | Zf腓特烈港股份公司 | 用于商用车的稳定装置 |
US8684381B2 (en) | 2008-06-19 | 2014-04-01 | Zf Friedrichshafen Ag | Stabilizer for a utility vehicle |
DE102011110697A1 (de) * | 2011-08-16 | 2013-02-21 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Verbundlenkervorrichtung für ein Kraftfahrzeug |
DE202014103377U1 (de) | 2014-07-22 | 2014-07-30 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
DE102014214229A1 (de) | 2014-07-22 | 2016-01-28 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
DE102014214232A1 (de) | 2014-07-22 | 2016-01-28 | Ford Global Technologies, Llc | Lenkung für eine Verbundlenkerachse |
Also Published As
Publication number | Publication date |
---|---|
JP2007500653A (ja) | 2007-01-18 |
KR20060018213A (ko) | 2006-02-28 |
EP1625065A2 (fr) | 2006-02-15 |
FR2855143A1 (fr) | 2004-11-26 |
FR2855143B1 (fr) | 2006-06-02 |
WO2004103802A3 (fr) | 2005-02-03 |
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