WO2024107155A2 - Barre de torsion - Google Patents

Barre de torsion Download PDF

Info

Publication number
WO2024107155A2
WO2024107155A2 PCT/TR2023/051343 TR2023051343W WO2024107155A2 WO 2024107155 A2 WO2024107155 A2 WO 2024107155A2 TR 2023051343 W TR2023051343 W TR 2023051343W WO 2024107155 A2 WO2024107155 A2 WO 2024107155A2
Authority
WO
WIPO (PCT)
Prior art keywords
torsion bar
connection
torsion
rods
rod
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.)
Ceased
Application number
PCT/TR2023/051343
Other languages
English (en)
Other versions
WO2024107155A3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karagoz Yasin
Tuerkiyenin Otomobili Girisim Grubu Sanayi ve Ticaret AS
Original Assignee
Karagoz Yasin
Tuerkiyenin Otomobili Girisim Grubu Sanayi ve Ticaret AS
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
Priority claimed from TR2022/017446 external-priority patent/TR2022017446A2/tr
Application filed by Karagoz Yasin, Tuerkiyenin Otomobili Girisim Grubu Sanayi ve Ticaret AS filed Critical Karagoz Yasin
Publication of WO2024107155A2 publication Critical patent/WO2024107155A2/fr
Publication of WO2024107155A3 publication Critical patent/WO2024107155A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B60G2200/23—Trailing arms connected by a U-shaped torsion bar
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/122—Mounting of torsion springs
    • B60G2204/1226—Mounting of torsion springs on the trailing arms of a twist beam type arrangement
    • 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
    • B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles
    • B60G2206/201—Constructional features of semi-rigid axles, e.g. twist beam type axles with detachable cross beam and/or torsion stabiliser bar/tube
    • 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
    • B60G2206/7102—Aluminium alloys
    • 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
    • B60G2206/72—Steel
    • B60G2206/722—Plates
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8207—Joining by screwing

Definitions

  • the present invention relates to a torsion bar wherein pieces composing the torsion bar are produced from aluminum material together with sheet material and the said pieces are coupled to each other through connection members.
  • Torsion bars are used to interconnect the right and left wheel assembly pieces located on the rear axle of vehicles. Torsion bars provide one of the most optimum solutions of rear suspension geometry in terms of cost, comfort and applicability by being positioned between dependent suspension types which are at high level in terms of comfort and are cost-efficient with high-cost suspension types, however, which have a quite low level of comfort. Torsion bars are twisted from the beam located in the middle thereof when any wheel hits a pothole or passes over a bump and it transmits the effect, which occurs based on a pothole or bump, to the other wheel. Thereby, improvement is provided in terms of vehicle comfort and road handling.
  • Torsion bars used today are manufactured from sheet material and then they are coupled to each other by welding, upon their lower pieces are shaped in sheet presses.
  • the main problem of torsion bars produced from sheet material is that they are heavy and also increase the weight of the vehicle. This case increases the undamped mass, which is one of the most important parameters of a vehicle, and reduces the road handling performance of the vehicle.
  • weight increases the vehicle weight, consumption increases in vehicles and this causes loss of range in electric vehicles and excessive fuel consumption in internal combustion vehicles. Therefore, today there is a need for solutions wherein the weight of a torsion bar is reduced and a welding method is not used as a connection type.
  • An objective of the present invention is to realize a torsion bar wherein part of pieces are produced from aluminum material in order to reduce the weight and pieces are coupled to each other through bolts instead of welding.
  • Another objective of the present invention is to realize a torsion bar whereby damping of torsional loads by beam is provided together with transaction of weight reduction by rod and spring cup, due to the fact that beam piece is made of sheet material and rods and spring cup piece are made of aluminum material.
  • Figure l is a perspective view of the inventive torsion bar.
  • Figure l is a top view of the inventive torsion bar.
  • Figure 3 is a detailed view of the connection of a torsion beam and a rod.
  • the inventive torsion bar (1) for reducing vehicle weight without any loss in meeting the loads occurring at the time of torsion by using aluminium pieces and sheet pieces together comprises at least two rods (2) which are made of aluminium material and enable to transmit and dampen the forces getting to the vehicle in the driving direction and laterally; at least one housing (3) which is located at one end of the rod (2), made of aluminium material and wherein one bush (B) is connected; a hub connection (4) which is located at the other end of the rod (2) and made of aluminium material; at least one spring cup (5) which is located at the end of the rod (2) where the hub connection (4) is present, together with the hub connection (4) and made of aluminium material; at least one torsion beam (6) which is located between the rods (2), made of aluminium material and ensures that the effect of force received from any wheel is transmitted to the other wheel by being reduced, upon it is twisted; and a plurality of connection members (7) which are used in interconnection of the rods (2) and the torsion beam (6).
  • the inventive torsion bar (1) there are two longitudinal rods (2) and a torsion beam (6), which is connected to the rods (2) by means of the connection members (7), is located between the said rods (2). At least two connection holes where the connection member (7) passes through is located at the part where the rods (2) combine with the torsion beam (6).
  • the rods (2) have an impact on the transmission and damping the forces which get to the vehicle in the driving direction and laterally and it combines the damped mass with the undamped mass.
  • the rods (2) are J- shaped.
  • one housing (3) whereto the bush (B) is connected is located at one end of the rod (2), whereas the hub connection (4) and the spring cup (5) are located together on its other end.
  • the housing (3) is the part where the bushes (B) connecting the rods (2) to the vehicle body are driven into.
  • the housing (3) is made of aluminium material and have an impact on the weight reduction.
  • Body connection brackets made of aluminium are also located on the bushes (B) being driven into the housing (3).
  • the hub connection (4) connects the rods (2) to the vehicle wheel assembly.
  • the hub connection (4) is made of aluminium material and has an impact on the weight reduction.
  • the spring cups (5) included in the inventive torsion bar (1) are configured to carry the suspension springs and they carry the body weight of the vehicle.
  • the spring cups (5) are made of aluminium material and have an impact on the weight reduction
  • the torsion beam (6) is a U profile made of sheet material.
  • the torsion beam (6) ensures that the effect of force received from any wheel is transmitted to the other wheel as little as possible, upon it is twisted.
  • the fact that the torsion beam (6) is U- shaped and made of sheet material is another factor which facilitates the torsion.
  • the U profile made of sheet material facilitates the torsion and also provides flexibility to the torsion beam (6) and enhances its strength as well.
  • connection protrusions which will correspond to the connection holes located on the rod (2) and where the connection member (7) is fixed are located on the torsion beam (6). Upon the said connection protrusions are through the connection holes located on the rod (2), the connection members (7) are tightened into the protrusions.
  • connection members (7) are bolts and made of sheet material.
  • the connection members (7) provide interconnection of the rods (2) and the torsion beam (6).
  • connection protrusions located on the torsion beam (6) are passed through the connection holes located on the rod (2), the connection members (7) are tightened into the protrusions and thus, the pieces are mounted together.
  • the torsion beam (6) and the connection member (7) are produced from sheet material, whereas pieces such as the housing (3), the hub connection (4) are produced from aluminium and thus, the the weight of the torsion bar (1) is reduced and in the meantime, the effect of forces received is reduced by being twisted.
  • the U-shaped torsion beam (6) made of sheet material dampens the loads, which are received at the time of torsion, without any damage by means of its high toughness value. Thereby, road handling is enhanced by reducing the undamped mass weight of the vehicle by means of pieces produced from aluminum material and an increase is provided in the vehicle range by reducing the fuel consumption of a vehicle by reducing the damped mass weight.

Landscapes

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

Abstract

La présente invention concerne une barre de torsion (1), des pièces composant la barre de torsion étant produites à partir d'un matériau d'aluminium conjointement avec un matériau en feuille et lesdites pièces étant reliées les unes aux autres par l'intermédiaire d'éléments d'assemblage (7).
PCT/TR2023/051343 2022-11-18 2023-11-17 Barre de torsion Ceased WO2024107155A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2022/017446 TR2022017446A2 (tr) 2022-11-18 Bi̇r burulma çubuğu
TR2022017446 2022-11-18

Publications (2)

Publication Number Publication Date
WO2024107155A2 true WO2024107155A2 (fr) 2024-05-23
WO2024107155A3 WO2024107155A3 (fr) 2024-08-22

Family

ID=91085584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2023/051343 Ceased WO2024107155A2 (fr) 2022-11-18 2023-11-17 Barre de torsion

Country Status (1)

Country Link
WO (1) WO2024107155A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561733B1 (fr) * 1984-03-20 1986-08-22 Peugeot Barre de torsion tubulaire
US4921231A (en) * 1985-08-14 1990-05-01 Reynolds Torsion System, Inc. Torsion spring cartridge assembly
SE0400549D0 (sv) * 2004-03-05 2004-03-05 Kongsberg Automotive Asa Torsjonsstang

Also Published As

Publication number Publication date
WO2024107155A3 (fr) 2024-08-22

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