KR100305851B1 - Suspension of vehicle - Google Patents

Suspension of vehicle Download PDF

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Publication number
KR100305851B1
KR100305851B1 KR1019970080079A KR19970080079A KR100305851B1 KR 100305851 B1 KR100305851 B1 KR 100305851B1 KR 1019970080079 A KR1019970080079 A KR 1019970080079A KR 19970080079 A KR19970080079 A KR 19970080079A KR 100305851 B1 KR100305851 B1 KR 100305851B1
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KR
South Korea
Prior art keywords
control arm
lower control
suspension
vehicle
linkage
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KR1019970080079A
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Korean (ko)
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KR19990059865A (en
Inventor
박영욱
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이계안
현대자동차주식회사
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Priority to KR1019970080079A priority Critical patent/KR100305851B1/en
Publication of KR19990059865A publication Critical patent/KR19990059865A/en
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Publication of KR100305851B1 publication Critical patent/KR100305851B1/en

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    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/13—Independent suspensions with longitudinal arms only
    • B60G2200/132—Independent suspensions with longitudinal arms only with a single trailing arm
    • B60G2200/1322—Independent suspensions with longitudinal arms only with a single trailing arm with a wishbone or triangular arm
    • 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
    • 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
    • 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
    • B60G2206/73—Rubber; Elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01—Attitude or posture control
    • B60G2800/012—Rolling condition

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

Abstract

PURPOSE: A suspension of a vehicle is provided to improve riding feeling by connecting a lower arm to a linkage and to reduce impact from a ground by decreasing rebound. CONSTITUTION: A suspension for a vehicle comprises a lower control arm(24) connected to a chassis; a connecting link(30) engaged with a connecting unit of a lower end lower control arm(26); a movement buffering member mounted on a chassis by being connected to the connecting link; a linkage(36) mounted on a housing(40) through a hinge shaft(38); and a rubber bush(42) inserted to the housing to generate repulsive force. The rubber bush is inserted to the connecting unit for absorbing vibration. The lower control arm is rotated around the connecting unit engaged with the chassis. Thereby, the suspension of the vehicle improves riding feeling by connecting the lower arm to the linkage.

Description

자동차의 현가장치Suspension of automobile

본 발명은 자동차의 현가장치에 관한 것으로, 더욱 상세하게는 더블 위시본 타입 현가장치의 로워아암(lower arm)을 개선하여 링케이지에 연결 설치하므로서 차량의 롤링시 조정안정성과 승차감을 증대시킨 자동차의 현가장치에 관한 것이다.The present invention relates to a suspension device for a vehicle, and more particularly, to improve the lower arm of a double wishbone type suspension system and to install a connection to a ring cage. It is about a suspension device.

일반적으로 자동차용 현가장치의 주요 기능은, 자동차의 상,하 방향으로 유연성을 제공하여 노면의 거침으로부터 차체가 영향을 받지 않도록 하면서 불규칙한 노면을 주행할 수 있도록 하는 것과, 노면에 대하여 적절한 조향 및 캠버 위치에 휠을 유지시키는 것과, 차체의 롤을 억제하는 것과,In general, the main function of the vehicle suspension system is to provide flexibility in the up and down direction of the vehicle so that the vehicle can run on irregular roads without being affected by the roughness of the road, and proper steering and camber on the road surface. Keeping the wheel in position, restraining the roll of the vehicle body,

그리고 최소의 하중변화를 가지도록 노면과 접촉하고 있는 타이어를 유지시키는 것에 있다.And to keep the tire in contact with the road surface with a minimum load change.

상기와 같은 현가장치에는 구조상으로 일체 차축 현가장치와, 독립 현가장치로 구분되는데, 일체식 차축 현가장치는 버스, 화물차등과 같은 대형차량과 승용차의 뒤차축에 적용되며, 독립 현가장치는 차축을 분할하여 양휠이 서로 관계없이 움직이게 하여 승차감과 안정성이 향상되도록 한 것으로서 승용차에 주로 적용되고 있다.Suspension system as described above is divided into an integrated axle suspension system and an independent suspension system, the integrated axle suspension system is applied to the rear axle of large vehicles such as buses, trucks and passenger cars, the independent suspension system It is applied mainly to passenger cars by dividing the two wheels to move independently of each other.

상기와 같은 현가장치는 노면으로부터 받는 진동이나 충격을 흡수함은 물론 주행중 자동차의 바른 자세를 유지하여 주어 주행 안정성을 확보하고 선회시 조종 안정성을 확보할 수 있도록 설계되고 있다.The suspension device is designed to absorb vibrations or shocks received from the road surface and to maintain the correct posture of the vehicle while driving to secure driving stability and to ensure steering stability during turning.

제4도는 종래기술에 따른 더블 위시본 현가장치를 도시한 도면으로, 어퍼 및 로워 컨트롤 아암(2)(4)과, 조향 너클(6)과 그리고 쇽 업소오버(8)를 포함하는 스트러트 어셈블리(10)와,4 shows a double wishbone suspension according to the prior art, comprising a strut assembly comprising an upper and lower control arm (2) (4), a steering knuckle (6) and a shock absorber (8). 10) with,

상기 어퍼 및 로워 컨트롤 아암(2)(4)을 조향너클(6)과 연결시켜 주는 보올 조인트(12)(14)로 구성되어 이루어지고 있다.The upper and lower control arms (2) and (4) consist of a bowl joint (12) (14) which connects the steering knuckle (6).

상기한 현가장치는 차륜의 범프나 리바운드시 스트러트 어셈블리(10)에 의해 노면으로부터 받는 외력으로 발생한 진동과 롤링을 제어하게 한다.The suspension device controls the vibration and rolling generated by the external force received from the road surface by the strut assembly 10 at the time of bump or rebound of the wheel.

상기한 종래기술은 스트러트 어셈블리의 감쇠력에 의해 주행중 외력으로부터 발생한 진동을 감쇄하여야 함에 따라 스트러트 어셈블리의 내구성 저하를 초래하는 문제점이 있다.The prior art has a problem that the durability of the strut assembly is reduced as the vibration generated from the external force while driving is attenuated by the damping force of the strut assembly.

상기한 바와 같이 이루어지는 종래기술의 문제점을 해소하기 위하여 발명된 것으로, 본 발명의 목적은 더블 위시본 타입 현가장치의 로워아암을 개선하여 링케이지에 연결 설치하므로서 차량의 롤링시 조정안정성과 승차감을 증대시킨 자동차의 현가장치에 관한 것이다.In order to solve the problems of the prior art made as described above, an object of the present invention is to improve the lower arm of the double wishbone type suspension system is connected to the ring cage to increase the adjustment stability and ride comfort when rolling the vehicle It relates to a suspension of a car.

도1은 본 발명에 따른 자동차의 현가장치를 도시한 사시도.1 is a perspective view showing a suspension of a vehicle according to the present invention.

도2는 본 발명에 따른 자동차의 현가장치를 도시한 측단면도.Figure 2 is a side sectional view showing a suspension of a vehicle according to the present invention.

도3은 본 발명의 작동상태를 도시한 도면.Figure 3 shows the operating state of the present invention.

도4는 종래기술을 도시한 도면.4 shows a prior art;

이를 실현하기 위한 본 발명은 좌/우 로워 컨트롤 아암을 포함하여 구성되는 더블 위시본 타입의 자동차 현가장치에 있어서,The present invention for realizing this in a double wishbone type vehicle suspension comprising a left / right lower control arm,

상기 좌/우 로워 컨트롤 아암은 그 하향측으로 좌/우 하단 로워 컨트롤 아암이 분기되고, 상기 좌/우 하단 로워 컨트롤 아암 사이에는 탄성수단을 구비하되,The left / right lower control arm has a lower left / right lower control arm branched downward and has elastic means between the left / right lower lower control arms,

상기 탄성수단은, 차체에 중앙이 힌지 결합하는 하우징 내부에 상하방향으로 배치되는 링케이지를 구비하여, 상기 링케이지는 상하의 설정지점에서 연결링크에 의해 상기 좌/우 하단 로어 컨트롤 아암에 각각 연결되고, 상기 하우징 내부는 탄성체인 고무부시로 채워지는 것을 특징으로 하는 자동차의 현가장치를 제공한다.The elastic means has a ring cage disposed up and down in a housing hinged to the center of the vehicle body, the ring cage is connected to the left and right lower lower control arms, respectively, by connecting links at upper and lower set points. The inside of the housing provides a suspension device for a vehicle, which is filled with a rubber bush which is an elastic body.

상기한 차량의 주행중 차륜의 범프시에 로워 컨트롤 아암이 차체에 연결된 포인트를 축으로 하여 회전하게 되면 지지수단인 하단 로워 컨트롤 아암은 외측으로 이동하게 되고, 감쇄수단인 연동감쇄부재는 회전하게 된다.When the lower control arm rotates about an axis connected to the vehicle body during the bumping of the wheel while driving the vehicle, the lower lower control arm serving as the supporting means moves outward and the interlocking damping member serving as the damping means rotates.

하단 로워 컨트롤 아암의 회전시 연동감쇄부재가 회전하게 되면 여기에 인장력이 발생하여 범프하는 차륜의 범프력을 감쇄한다.When the interlocking damping member rotates when the lower lower control arm rotates, a tensile force is generated therein to reduce the bumping force of the bumping wheel.

이때 반대측에 설치된 하단 로워 컨트롤 아암은 회전하는 연동감쇄부재에 의해 푸쉬되어 리바운드 하는 차륜을 제어 노면과의 충돌을 저감시켜 롤 강성을 증대시킨다.At this time, the lower lower control arm installed on the opposite side is pushed by the rotating linkage damping member to reduce the collision with the control road surface of the wheel to rebound, thereby increasing roll rigidity.

이하, 본 발명의 바람직한 일 실시예를 첨부한 도면에 의하여 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

도1은 본 발명에 따른 자동차의 현가장치를 도시한 사시도이고, 도2는 본 발명에 따른 자동차의 현가장치를 도시한 측단면도이다.1 is a perspective view showing a suspension of a vehicle according to the present invention, Figure 2 is a side sectional view showing a suspension of a vehicle according to the present invention.

더블 위시본 타입의 자동차 현가장치(20)에 있어서 차체(22)에 연결되는 로워 컨트롤 아암(24)으로부터 하향측으로 지지수단인 하단 로워 컨트롤 아암(26)을 분기하여 형성하고 있다.In the double wishbone type vehicle suspension apparatus 20, a lower lower control arm 26 serving as a supporting means is formed by branching from the lower control arm 24 connected to the vehicle body 22 downwardly.

상기 하단 로워 컨트롤 아암(26)의 연결부(28)에 연결링크(30)를 연결하고 있으며, 이 연결링크(30)는 차체(22)에 장착된 감쇄수단인 연동감쇄부재(32)에 연결 설치하여 이루어지고 있다.The connecting link 30 is connected to the connecting portion 28 of the lower lower control arm 26, and the connecting link 30 is connected to the interlocking damping member 32 which is attenuating means mounted on the vehicle body 22. Is done.

연동감쇄부재(32)는 하단 로워 컨트롤 아암(26)에 연결된 연결링크(30)(34)를 상하에 힌지 설치한 링케이지(36)와, 이 링케이지(36)를 힌지축(38)으로 설치하는 하우징(40)에 회전시 반력을 발생하게 고무부시(42)를 개재하여 이루어지고 있다.The linkage damping member 32 includes a ring cage 36 hinged up and down with connecting links 30 and 34 connected to the lower lower control arm 26, and the link cage 36 is hinged to the hinge shaft 38. As shown in FIG. The housing 40 to be installed is made via the rubber bush 42 to generate a reaction force during rotation.

연결부(28)에는 고무부시(44)를 개재하고 있어 진동 흡수와 변위를 일으키게 하고 있다.The coupling portion 28 is provided with a rubber bush 44 to cause vibration absorption and displacement.

상기한 바와 같이 이루어지는 본 발명의 작동은 차량의 주행중 차륜(46)이 범프하면 로워 컨트롤 아암(24)이 차체(22)에 연결된 연결부(46)를 축으로 하여 회전이 이루어진다.In the operation of the present invention as described above, when the wheel 46 bumps while the vehicle is traveling, the lower control arm 24 is rotated about the connecting portion 46 connected to the vehicle body 22.

이에 하단 로워 컨트롤 아암(26)의 연결부(28)를 포인트로 했을 때 외측으로 이동하게 되고, 이 연결부(28)에 연결된 연결링크(30)는 운동력을 연동감쇄부재(32)에 전달하므로서 회전하게 한다.When the connection portion 28 of the lower lower control arm 26 as a point is moved to the outside, and the connection link 30 connected to the connection portion 28 rotates while transmitting the kinetic force to the interlocking damping member 32. do.

이때 하단 로워 컨트롤 아암(26)의 이동으로 로워 컨트롤 아암(24)의 휠측 포인트인 연결부(48)의 상승이 동시에 이루어지기 때문에 연동감쇄부재(32)는 고무부시(42)를 변형시키면서 연결링크(30)에 의해 링케이지(36)의 하단이 당겨짐에 따라 인장력이 발생 범프하는 차륜의 범프력을 감쇄한다.At this time, since the lower portion of the control arm (26) is moved by the movement of the connecting portion 48, which is the wheel side point of the lower control arm (24), the interlocking damping member (32) deforms the rubber bush (42) while the connecting link ( As the lower end of the ring cage 36 is pulled by 30), the bump force of the wheel in which the tension force is generated and bumps is attenuated.

이때 반대측에 설치된 하단 로워 컨트롤 아암(50)은 연동감쇄부재(32)의 링케이지(36) 상부에 연결링크(34)로 연결되고 있어서 외측으로 밀려 리바운드 하는 차륜을 밀어 올리려 하기 때문에 노면과 충돌하는 차륜을 제어하게 되어 롤 강성을 증대시킨다.At this time, the lower lower control arm 50 installed on the opposite side is connected to the linkage link 36 on the linkage 36 of the interlocking damping member 32, so that the vehicle pushes outward and pushes the rebound wheel to collide with the road surface. The wheels are controlled to increase roll rigidity.

그리고 리바운드 하는 차륜을 중심으로 작동을 설명하면 범프시 설명과 반대인데, 먼저 로워 컨트롤 아암(24)이 연결부(46)를 축으로 하여 하강하고, 여기에 일체인 하단 로워 컨트롤 아암(26)에 연결된 연결링크(30)를 밀게 된다.And the operation of the rebound wheel is described as opposed to the description at the time of bumping. First, the lower control arm 24 descends about the connecting portion 46 as an axis, and is connected to the lower lower control arm 26 integrated therein. The connection link 30 is pushed.

따라서 연결링크(30)를 통해 링케이지(36)는 고무부시(42)의 탄성력을 극복하면서 회전하게 되고, 링케이지(36)의 상부에 연결된 연결링크(34)를 당기게 되면 반대측 하단로워 컨트롤 아암(50)은 차륜의 범프를 억제 차체의 롤링을 제어하게 된다.Therefore, the link cage 36 is rotated through the link link 30 while overcoming the elastic force of the rubber bush 42, and when the link link 34 connected to the upper portion of the link cage 36 is pulled, the lower lower control arm 50 controls the rolling of the vehicle body by suppressing bumps on the wheels.

다시 말해 하단 로워 컨트롤 아암(26)에 연결링크(30)(34)로 연결된 연동감쇄부재(32)를 로워 컨트롤 아암(24)(52)간의 중간인 차체에 설치한다.In other words, the interlocking damping member 32 connected to the lower lower control arm 26 by the link links 30 and 34 is installed in the vehicle body that is intermediate between the lower control arms 24 and 52.

따라서 연동감쇄부재에 의해 차륜의 범프와 리바운드시 승차감 및 롤 강성을 증대하게 된다.Therefore, the ride comfort and roll rigidity are increased at the bump and rebound of the wheel by the interlocking damping member.

이러한 본 발명은 범프와 리바운드시 감쇄력과 동시에 작용하므로서 차체의 롤 강성의 증대가 이루어짐은 물론 타이어의 그립력 향상으로 주행성이 좋아지고 리바운드 감쇄로 노면과의 충격 저감을 가져오는 발명이다.The present invention acts simultaneously with the damping force at the time of bumps and rebounds, thereby increasing the roll rigidity of the vehicle body, as well as improving the driving force by improving the grip force of the tire, and reducing the impact on the road surface by reducing the rebounds.

Claims (1)

좌/우 로워 컨트롤 아암을 포함하여 구성되는 더블 위시본 타입의 자동차 현가장치에 있어서,In a double wishbone type automobile suspension configured with a left / right lower control arm, 상기 좌/우 로워 컨트롤 아암은 그 하향측으로 좌/우 하단 로워 컨트롤 아암이 분기되고, 상기 좌/우 하단 로워 컨트롤 아암 사이에는 탄성수단을 구비하되,The left / right lower control arm has a lower left / right lower control arm branched downward and has elastic means between the left / right lower lower control arms, 상기 탄성수단은, 차체에 중앙이 힌지 결합되는 하우징 내부에 상하방향으로 배치되는 링케이지를 구비하여, 상기 링케이지는 상하의 설정지점에서 연결링크에 의해 상기 좌/우 하단 로어 컨트롤 아암에 각각 연결되고, 상기 하우징 내부는 탄성체인 고무부시로 채워지는 것을 특징으로 하는 자동차의 현가장치.The elastic means has a ring cage disposed up and down in a housing hinged to the center of the vehicle body, the ring cage is connected to the left and right lower lower control arms, respectively, by connecting links at upper and lower set points. The suspension of the vehicle, characterized in that the inside of the housing is filled with a rubber bush which is an elastic body.
KR1019970080079A 1997-12-31 1997-12-31 Suspension of vehicle KR100305851B1 (en)

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KR100444453B1 (en) * 2001-12-13 2004-08-16 현대자동차주식회사 apparatus for electronic suspension of car
KR20030055449A (en) * 2001-12-26 2003-07-04 현대자동차주식회사 multi-link type suspension system for automotive vehicles
WO2010101312A1 (en) * 2009-03-02 2010-09-10 Oh Hyung Taek Apparatus for maintaining level of vehicle body

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