KR20090003576A - Rear suspension structure of a vehicle - Google Patents

Rear suspension structure of a vehicle Download PDF

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Publication number
KR20090003576A
KR20090003576A KR1020070066327A KR20070066327A KR20090003576A KR 20090003576 A KR20090003576 A KR 20090003576A KR 1020070066327 A KR1020070066327 A KR 1020070066327A KR 20070066327 A KR20070066327 A KR 20070066327A KR 20090003576 A KR20090003576 A KR 20090003576A
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KR
South Korea
Prior art keywords
vehicle
wheel
vehicle body
lateral
link
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KR1020070066327A
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Korean (ko)
Inventor
김효석
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현대자동차주식회사
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Priority to KR1020070066327A priority Critical patent/KR20090003576A/en
Publication of KR20090003576A publication Critical patent/KR20090003576A/en

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    • 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
    • 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
    • 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
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/422—Links for mounting suspension elements
    • 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
    • B60G2204/43—Fittings, brackets or knuckles

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

Abstract

A rear suspension system structure of the vehicles is provided to improve driveability and stability of the vehicles. A rear suspension system structure of the vehicles comprises a front lateral link(5) is placed toward the traverse direction of the car body and connected to the knuckle of wheel is positioned at the front of the vehicles based on the center of rotation of wheel; and a link bracket(11) is the side edge portion of car body of the respective connected front lateral link is united with both sides rear wheel with the lateral part hinge with both ends and taking shape the isosceles triangle.

Description

차량의 후륜 현가장치 구조{rear suspension structure of a vehicle}Rear suspension structure of a vehicle

도 1은 종래의 세미트레일링암식 리어서스펜션의 선회시 거동을 설명한 도면,1 is a view for explaining the behavior during the turning of the conventional semi-trailing arm type suspension,

도 2는 본 발명에 따른 차량의 후륜 현가장치 구조를 설명한 것으로서 차량의 전방에서 관측한 도면,2 is a view illustrating a structure of a rear wheel suspension of a vehicle according to the present invention and viewed from the front of the vehicle;

도 3은 본 발명에 따른 차량의 후륜 현가장치 구조를 설명한 것으로서 차량의 상측에서 관측한 도면,3 is a view illustrating a structure of a rear wheel suspension of a vehicle according to the present invention and viewed from an upper side of the vehicle,

도 4는 본 발명의 작용을 설명한 도면이다.4 illustrates the operation of the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 차륜 3; 너클One; Wheel 3; Knuckles

5; 전방래터럴링크 7; 측방힌지5; Forward lateral link 7; Side hinge

9; 중앙힌지 11; 링크브라켓9; Center hinge 11; Link Bracket

13; 리어센터크로스멤버 15; 후방래터럴링크13; Rear center crossmember 15; Rear Lateral Links

17; 스트럿어셈블리 17; Strut assembly

본 발명은 차량의 후륜 현가장치 구조에 관한 것으로서, 보다 상세하게는 차체의 횡방향을 따라 배치되어 후륜 너클을 차체에 지지하도록 하는 래너럴링크의 구조에 관한 기술이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear wheel suspension structure of a vehicle, and more particularly, to a structure of a radial link that is disposed along a lateral direction of a vehicle body to support a rear wheel knuckle to the vehicle body.

차량의 후륜 현가장치는 전륜 현가장치 못지않게 차량의 조종성과 안정성에 큰 영향을 미치는 바, 차량의 선회시 전륜은 범프하는 선회 외륜이 토우아웃이 되는 것이 차량의 조종안정성 측면에서 바람직한 반면, 후륜은 선회 외륜이 토우인이 되는 것이 차량의 조종안정성 측면에서 유리하다.The rear suspension of the vehicle has a greater impact on the maneuverability and stability of the vehicle as much as the front suspension.The turning wheels bumping the front wheels during the turning of the vehicle are preferably toe-out, while the rear wheels are preferred. The turning paddle toe-in is advantageous in terms of steering stability of the vehicle.

그러나, 종래 대부분의 차량의 후륜 현가장치는 차량의 선회시 선회 외륜이 토우인이 되도록 하는 것이 매우 어려운 구조이다.However, the rear suspension of most vehicles in the related art has a very difficult structure to make the turning outer ring toe-in when turning the vehicle.

그 일 예로 도 1에 도시된 바와 같이, 종래에 고성능 차량의 리어서스펜션으로 주로 탑재되어 온 세미트레일링암식 리어현가장치에서 조차도, 선회시 후륜의 선회 외륜은 코너링포스를 받으면 부시나 현가암 등의 변형에 의하여 토우아웃 특성을 보이게 되는 것을 예시하고 있다.As an example, as shown in FIG. 1, even in a semi-trailing arm type rear suspension system that is conventionally mainly mounted as a suspension of a high-performance vehicle, the turning outer wheel of the rear wheel during turning is subjected to a cornering force such as a bush or a suspension arm. The tow-out characteristic is shown by the deformation.

본 발명은 간단한 구성으로 차량의 선회시에 후륜의 선회 외륜이 저절로 토우인을 형성할 수 있도록 함으로써, 차량의 조종성과 안정성을 크게 향상시킬 수 있도록 한 차량의 후륜 현가장치 구조를 제공함에 그 목적이 있다.It is an object of the present invention to provide a rear wheel suspension structure of a vehicle, which enables the rear outer wheel of the rear wheel to automatically form a toe-in by itself in a simple configuration, thereby greatly improving the maneuverability and stability of the vehicle. .

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 후륜 현가장치 구 조는Rear wheel suspension structure of the vehicle of the present invention for achieving the above object is

차체의 횡방향으로 배치되어, 차체에 대한 차륜의 상하방향 운동만 허용하는 상태로 설치되되, 차륜의 너클과 연결된 부위는 차륜의 회전중심을 기준으로 차량의 전방에 위치하는 전방래터럴링크와;A front lateral link disposed in the transverse direction of the vehicle body and installed in a state allowing only vertical movement of the wheel relative to the vehicle body, wherein a portion connected to the knuckle of the wheel is positioned in front of the vehicle based on the center of rotation of the wheel;

양쪽 후륜에 각각 연결된 상기 전방래터럴링크의 차체측단부를 측방힌지로 양단에 각각 회동가능하게 결합하고, 그 중앙부위가 중앙힌지로 차체에 회동가능하게 결합되며 상기 중앙힌지와 두 측방힌지는 이등변삼각형을 형성하는 링크브라켓;The body side ends of the front lateral links respectively connected to both rear wheels are rotatably coupled to both ends with lateral hinges, and the central portions thereof are rotatably coupled to the car body with a central hinge, and the central hinge and two side hinges are isosceles triangles. Link bracket forming a;

을 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

또한, 상기 링크브라켓이 결합되는 차체는 리어센터크로스멤버로서, 상기 중앙힌지는 차체의 전후방향 중심면 상에서 차체의 전후방향을 따라 상기 리어센터크로스멤버를 관통하는 회동축을 가지며;In addition, the vehicle body to which the link bracket is coupled is a rear center cross member, and the central hinge has a pivot shaft penetrating the rear center cross member along the front and rear direction of the vehicle body on the front and rear center surface of the vehicle body;

상기 두 측방힌지는 상기 중앙힌지의 하측에 위치하는 것을 특징으로 한다.The two side hinges are located below the central hinge.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2와 도 3을 참조하면, 본 발명 실시예는 차체의 횡방향으로 배치되어, 차체에 대한 차륜의 상하방향 운동만 허용하는 상태로 설치되되, 차륜(1)의 너클(3)과 연결된 부위는 차륜의 회전중심을 기준으로 차량의 전방에 위치하는 전방래터럴링크(5)와; 양쪽 후륜에 각각 연결된 상기 전방래터럴링크(5)의 차체측단부를 측방힌지(7)로 양단에 각각 회동가능하게 결합하고, 그 중앙부위가 중앙힌지(9)로 차체에 회동가능하게 결합되며 상기 중앙힌지(9)와 두 측방힌지(7) 는 이등변삼각형을 형성하는 링크브라켓(11)을 포함하여 구성된다.2 and 3, the embodiment of the present invention is disposed in the transverse direction of the vehicle body, and installed in a state allowing only the vertical movement of the wheel relative to the vehicle body, the portion connected to the knuckle (3) of the wheel (1) The front lateral link (5) located in front of the vehicle with respect to the center of rotation of the wheel; The body side ends of the front lateral link 5 respectively connected to both rear wheels are rotatably coupled to both ends by the side hinges 7, and the center portions thereof are rotatably coupled to the vehicle bodies by the central hinges 9. The central hinge 9 and the two side hinges 7 comprise a link bracket 11 forming an isosceles triangle.

상기 링크브라켓(11)이 결합되는 차체는 리어센터크로스멤버(13)로서, 상기 중앙힌지(9)는 차체의 전후방향 중심면 상에서 차체의 전후방향을 따라 상기 리어센터크로스멤버(13)를 관통하는 회동축을 가진다.The vehicle body to which the link bracket 11 is coupled is a rear center cross member 13, and the central hinge 9 penetrates the rear center cross member 13 along the front and rear directions of the vehicle body on the front and rear center planes of the vehicle body. It has a rotating shaft.

상기 두 측방힌지(7)는 상기 중앙힌지(9)의 하측에 위치한다. 즉, 상기 리어센터크로스멤버(13)의 두 측방힌지(7)와 중앙힌지(9)의 배치관계를 보면 도 2에 도시된 바와 같이 알파벳 V 자를 역으로 뒤집은 형태가 된다.The two side hinges 7 are located below the central hinge 9. That is, the arrangement relationship between the two side hinges 7 and the central hinge 9 of the rear center cross member 13 is inverted to form the letter V in reverse as shown in FIG. 2.

도 3을 참조하면, 상기 리어센터크로스멤버(13)의 차체 후방측으로는 후방래터럴링크(15)가 종래의 일반적인 래터럴링크와 마찬가지로 일단은 너클(3)에 연결되고 타단은 리어센터크로스멤버(13)에 직접 힌지로 회동가능하게 결합된 구조이다.Referring to FIG. 3, the rear lateral link 15 is connected to the knuckle 3 at one end of the rear center cross member 13 and the rear end of the rear center cross member 13, as in the conventional general lateral link. It is a structure that is rotatably coupled to the hinge directly on the).

상기한 바와 같이 구성된 차량의 후륜 현가장치의 작용을 도 4를 참조하여 설명하면 다음과 같다.The operation of the rear wheel suspension of the vehicle configured as described above will be described with reference to FIG. 4.

차량의 보통 직진 주행시에는 양쪽의 전방래터럴링크(5)는 서로 균형을 이루어 상기한 후방래터럴링크(15)와 함께 양쪽의 후륜을 직진 주행상태로 평행하게 유지한다.During normal straight running of the vehicle, both front lateral links 5 are balanced with each other to keep both rear wheels in parallel with the rear lateral links 15 in the straight running state.

차량이 선회 주행을 하게 되면, 도 4에 도시된 바와 같이 선회 외륜인 우측 후륜에는 횡력이 작용하는데, 이때 상기 너클(3)은 상측으로는 스트럿어셈블리(17)가 장착되어 있고, 후방측으로는 상기 후방래터럴링크(15)가 장착되어 있어서, 선회 외륜은 범프하여 차체에 대하여 상승하면서 횡력으로 상기 전방래터럴링크(5)를 차체의 내측으로 밀게 된다.When the vehicle is turning, the lateral force is applied to the right rear wheel, which is the outer ring of turning, as shown in FIG. 4, wherein the knuckle 3 is mounted with the strut assembly 17 on the upper side and on the rear side. Since the rear lateral link 15 is mounted, the turning outer ring bumps and rises with respect to the vehicle body, and pushes the front lateral link 5 to the inside of the vehicle body in a lateral force.

따라서, 상기와 같이 전방래터럴링크(5)로 횡력을 전달받은 상기 링크브라켓(11)은 도 4에 도시된 바와 같이 시계방향으로 회동되게 되고, 이에 의해 선회 외륜은 전방측이 차량의 내측을 향하여 회동하여 토우인을 형성하게 된다.Therefore, the link bracket 11 which has received the lateral force transmitted to the front lateral link 5 as described above is rotated clockwise as shown in FIG. 4, whereby the turning outer ring faces the inside of the vehicle. Rotate to form a toe-in.

한편, 상기한 바와 같이 링크브라켓(11)이 회동되면 선회 내륜측에 연결된 전방래터럴링크(5)로도 상기 선회 외륜으로부터 전달된 횡력이 전달되는데, 이에 대하여 상기 선회 내륜 및 여기에 연결된 전방래터럴링크(5)는 저항력을 제공하여, 상기 링크브라켓(11)의 회동량이 지나치게 커지지 않도록 한다.On the other hand, when the link bracket 11 is rotated as described above, the lateral force transmitted from the turning outer ring is also transmitted to the front lateral link 5 connected to the turning inner ring side, and the turning inner ring and the front lateral link connected thereto ( 5) provides a resistance, so that the amount of rotation of the link bracket 11 is not too large.

따라서, 차량의 선회시에 후륜의 선회 외륜은 저절로 적절한 양의 토우인이 형성되어 차량의 언더스티어 특성을 얻을 수 있도록 하므로, 차량의 조종성과 안정성이 크게 향상되게 된다. Therefore, the turning outer ring of the rear wheel at the time of turning of the vehicle can automatically form an appropriate amount of toe-in to obtain the understeer characteristic of the vehicle, thereby greatly improving the maneuverability and stability of the vehicle.

이상과 같이 본 발명에 의하면, 간단한 구성으로 차량의 선회시에 후륜의 선회 외륜이 저절로 토우인을 형성할 수 있도록 함으로써, 차량의 조종성과 안정성을 크게 향상시킬 수 있도록 한다.According to the present invention as described above, it is possible to greatly improve the maneuverability and stability of the vehicle by allowing the turning outer ring of the rear wheel to form a toe by itself when the vehicle is turning with a simple configuration.

Claims (2)

차체의 횡방향으로 배치되어, 차체에 대한 차륜의 상하방향 운동만 허용하는 상태로 설치되되, 차륜의 너클과 연결된 부위는 차륜의 회전중심을 기준으로 차량의 전방에 위치하는 전방래터럴링크와;A front lateral link disposed in the transverse direction of the vehicle body and installed in a state allowing only vertical movement of the wheel relative to the vehicle body, wherein a portion connected to the knuckle of the wheel is positioned in front of the vehicle based on the center of rotation of the wheel; 양쪽 후륜에 각각 연결된 상기 전방래터럴링크의 차체측단부를 측방힌지로 양단에 각각 회동가능하게 결합하고, 그 중앙부위가 중앙힌지로 차체에 회동가능하게 결합되며 상기 중앙힌지와 두 측방힌지는 이등변삼각형을 형성하는 링크브라켓;The body side ends of the front lateral links respectively connected to both rear wheels are rotatably coupled to both ends with lateral hinges, and the central portions thereof are rotatably coupled to the car body with a central hinge, and the central hinge and two side hinges are isosceles triangles. Link bracket forming a; 을 포함하여 구성된 것을 특징으로 하는 차량의 후륜 현가장치 구조.Rear wheel suspension structure of the vehicle, characterized in that configured to include. 청구항 1에 있어서,The method according to claim 1, 상기 링크브라켓이 결합되는 차체는 리어센터크로스멤버로서, 상기 중앙힌지는 차체의 전후방향 중심면 상에서 차체의 전후방향을 따라 상기 리어센터크로스멤버를 관통하는 회동축을 가지며;The vehicle body to which the link bracket is coupled is a rear center cross member, and the central hinge has a rotation shaft penetrating the rear center cross member along the front and rear direction of the vehicle body on the front and rear center plane of the vehicle body; 상기 두 측방힌지는 상기 중앙힌지의 하측에 위치하는 것The two lateral hinges are located below the central hinge. 을 특징으로 하는 차량의 후륜 현가장치 구조.Rear wheel suspension structure of the vehicle, characterized in that.
KR1020070066327A 2007-07-03 2007-07-03 Rear suspension structure of a vehicle KR20090003576A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107554231A (en) * 2017-08-09 2018-01-09 北京汽车股份有限公司 Suspension and automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107554231A (en) * 2017-08-09 2018-01-09 北京汽车股份有限公司 Suspension and automobile

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