KR20020044931A - Strut type suspension of vehicle - Google Patents

Strut type suspension of vehicle Download PDF

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Publication number
KR20020044931A
KR20020044931A KR1020000074201A KR20000074201A KR20020044931A KR 20020044931 A KR20020044931 A KR 20020044931A KR 1020000074201 A KR1020000074201 A KR 1020000074201A KR 20000074201 A KR20000074201 A KR 20000074201A KR 20020044931 A KR20020044931 A KR 20020044931A
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KR
South Korea
Prior art keywords
point
vehicle
shock absorber
knuckle arm
connecting part
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KR1020000074201A
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Korean (ko)
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KR100456864B1 (en
Inventor
우승훈
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이계안
현대자동차주식회사
류정열
기아자동차주식회사
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Priority to KR10-2000-0074201A priority Critical patent/KR100456864B1/en
Publication of KR20020044931A publication Critical patent/KR20020044931A/en
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Publication of KR100456864B1 publication Critical patent/KR100456864B1/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
    • B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • 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
    • B60G2200/46—Indexing codes relating to the wheels in the suspensions camber angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/07—Inhibiting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in
    • 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
    • B62D7/18—Steering knuckles; King pins

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

Abstract

PURPOSE: A suspension system of strut type for a vehicle is provided to reduce steering force and occurrence of shimmy, and secure the size of an engine room because camber of division is maximized as appointing a connecting part of a knuckle arm and shock absorber for a transforming point in bumping movement, and fixing the shock absorber and the connecting part of a frame of a vehicle. CONSTITUTION: A suspension system of strut type for a vehicle consists of a knuckle arm(4) supporting to be rotatable a wheel(2); a strut bar(6) connected between the knuckle arm and a frame of a vehicle(10); a shock absorber(8) connected to make a straight line from the upper side of the knuckle arm to the side of the frame. A connecting part connected the knuckle arm and the strut bar is appointed for a point O. A point P is a connecting part connected the shock absorber and the knuckle arm and a point T is a connecting part connected the shock absorber and the frame. A point Q, a connecting part between the shock absorber and the frame, is fixed to prevent transformation and a point A, a connecting part of the knuckle arm and shock absorber, is formed allowing transformation. A lower unit of the shock absorber is arranged to the inner direction of the frame in moved state as constant width. A support point transformed in bumping movement moved from the point T to the point A. When the bumping movement, the point T is located in the outside of the vehicle and an engine room is secured. To make a turning paddle in steering for a camber angle is easy because a kingpin angle can be design small.

Description

차량용 스트러트 타입 현가장치 { Strut type suspension of vehicle }Strut type suspension of vehicle {Strut type suspension of vehicle}

본 발명은 차량의 스트러트 타입 현가장치에 관한 것으로서, 보다 상세하게는 휠 오프셋을 작게 할 수 있으므로 조향력을 줄일 수 있고 시미현상을 감소시킴과 아울러 킹핀경사각을 작게 설계할 수 있기 때문에 조향시 선회 외륜을 부의 캠버각으로 만들기가 유리하고 또 범프시 부의 캠버각을 만들기가 유리하므로, 선회시 지면에 대한 캠버각을 0에 가깝게 유지할 수 있어서, 선회 접지성 및 응답성능을 향상시킬 수 있는 차량의 스트러트 타입 현가장치에 관한 것이다.The present invention relates to a strut-type suspension of a vehicle, and more particularly, the wheel offset can be made small, thereby reducing steering force, reducing the taste, and designing a small kingpin inclination. It is advantageous to make the negative camber angle and to make the negative camber angle at the time of bump, so that the camber angle with respect to the ground can be kept close to 0 when turning, so that the strut type suspension of the vehicle can improve the turning groundability and response performance. Relates to a device.

일반적으로 차량용 현가장치는 승차감 및 주행안정을 결정하는 중요한 장치이며, 그 승차감 및 주행 안정성, 조향력 등을 고려하여 올바른 휠 얼라인먼트를 설정한다.In general, the vehicle suspension is an important device for determining the riding comfort and driving stability, and sets the correct wheel alignment in consideration of the riding comfort, driving stability, steering power and the like.

도 1은 종래 기술에 따른 스트러트 타입 현가장치의 구성도이고, 도 2는 종래 기술에 따른 스트러트 타입 현가장치의 사용 상태도로서, 바퀴(104)를 회전 가능하게 지지하는 너클 암(102)과, 이 너클 암(102)과 차체 프레임 사이에 연결되는 스트러트 바(106)와, 상기 너클 암(102)의 상측에서 차체측으로 일직선을 이루도록 연결되어 완충작용을 수행하는 쇽 업소버(108) 등으로 구성된다.1 is a configuration diagram of a strut type suspension device according to the prior art, and FIG. 2 is a state diagram of a use of the strut type suspension device according to the prior art, and includes a knuckle arm 102 rotatably supporting the wheel 104. The strut bar 106 connected between the knuckle arm 102 and the vehicle body frame, and the shock absorber 108 connected to the vehicle body side in a straight line from the upper side of the knuckle arm 102 to perform a shock absorbing action.

여기에서, 너클 암(102)과 스트러크 바(106)의 연결 지점을 지점 B로 하고, 쇽 업쇼버와 차체측 연결부를 지점 T로 한다.Here, the connection point of the knuckle arm 102 and the stroke bar 106 is made into the point B, and the shock absorber and the vehicle body side connection part are made into the point T.

이러한 경우 범프(bump) 운동시 지점 B가 지점 B'로 변화되면서 차량의 외측으로 나오는 폭만큼만 부의 캠버로 변화된다. 이때, 지점 T에서 지점 B까지의 거리가 길어지므로 지점 B'로 변환되는 폭에 비해 부의 캠버로 변환되는 폭이 적어지게 된다.In this case, the point B is changed to the point B 'during the bump movement, and is changed to the negative camber only by the width coming out of the vehicle. At this time, since the distance from the point T to the point B becomes longer, the width converted to the negative camber becomes smaller than the width converted to the point B '.

그리고, 이러한 상태에서, 계속해서 펌프 운동이 발생되면 지점 B'가 차량의 내측방향으로 다시 들어가게 되어 정의 캠버로 변화된다.In this state, if the pump motion continues to occur, the point B 'enters the inside of the vehicle again and changes to the positive camber.

즉, 상기한 바와 같은 종래의 스트러트 타입 서스펜션은 범프 운동시 부의 캠버 변화 폭이 작기 때문에 선회시 외륜의 캠버각 제어에 한계를 초래하게 되는 문제점이 있다.That is, the conventional strut-type suspension as described above has a problem in that the camber angle control of the outer ring at the time of turning causes a limitation because of the small change in the camber during the bump movement.

그리고, 이러한 종래의 서스펜션은 부의 캠버를 증가시키기 위해서는 지점 T를 차량의 안쪽 방향으로 위치시켜야 되기 때문에 그 만큼 엔진룸의 크기가 줄어들게 되고, 상기와 같이 지점 T를 차량의 안쪽 방향으로 위치시키면 휠 오프셋(타이어의 접지면 중심과 킹핀의 연장선이 노면과 교차하는 거리)에 해당되는 간격(d1)이 간격(d2)로 변화되어 길어지게 되어 조향감을 저하시키고 시미(shimmy)를 발생시키며, 조향시 선회 외륜의 캠버각을 부의 캠버로 하는 데 불리한 문제점이 있다.In addition, since the conventional suspension has to place the point T in the direction of the vehicle in order to increase the negative camber, the size of the engine room is reduced by that amount. The distance (d1) corresponding to (the distance between the center of the ground plane of the tire and the extension line of the kingpin intersects the road surface) is changed to the distance (d2) to become longer, which lowers steering feeling and generates shimmy, and turns during steering. There is a disadvantage in that the camber angle of the outer ring is a negative camber.

본 발명은 상기한 문제점을 해결하기 위하여 창출된 것으로서, 본 발명의 목적은 킹핀경사각을 작게 설계할 수 있기 때문에 조향시 선회 외륜을 부의 캠버각으로 만들기가 유리하고 또 범프시 부의 캠버각을 만들기가 유리하므로, 선회시 지면에 대한 캠버각을 0에 가깝게 유지할 수 있어서, 선회 접지성 및 응답성능을 향상시키고 휠 오프셋을 작게 할 수 있으므로 조향감 및 시미 발생을 저감시킬 수 있으며, 엔진룸의 크기를 증대시킬 수 있는 차량용 스트러트 타입 현가장치를 제공하는 데 있다.The present invention was created in order to solve the above problems, and an object of the present invention is to make the king pin inclination angle small, so it is advantageous to make the outer ring of the turning outer wheel at the negative camber angle during steering and to make the negative camber angle at the bump. As it is advantageous, the camber angle to the ground can be kept close to zero when turning, improving turning grounding response and response performance, and reducing wheel offset, thereby reducing steering feeling and taste, and increasing the size of the engine room. To provide a strut type suspension device for a vehicle that can be made.

도 1은 종래 기술에 따른 차량용 스트러트 타입 현가장치의 개략도이고,1 is a schematic diagram of a strut type suspension device for a vehicle according to the prior art,

도 2는 종래 기술에 따른 스트러트 타입 현가장치의 범프(bump) 운동시 캠버각 변화를 나타낸 구성도이고,2 is a block diagram showing a change in the camber angle during the bump (bump) movement of the strut type suspension according to the prior art,

도 3은 본 발명의 일 실시예에 따른 차량용 스트러트 타입 현가장치의 개략도이고,3 is a schematic diagram of a vehicle strut type suspension device according to an embodiment of the present invention,

도 4는 본 발명의 일 실시예에 따른 차량용 스트러트 타입 현가장치의 범프 운동시 캠버각 변화를 나타낸 구성도이다.Figure 4 is a block diagram showing the camber angle change during the bump movement of the vehicle strut type suspension device according to an embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

2 : 바퀴 4 : 너클 암2: wheel 4: knuckle arm

6 : 스트러트 바 8 : 쇽 업소버6: strut bar 8: shock absorber

10 : 차체10: body

상기한 과제를 실현하기 위한 본 발명에 따른 차량용 스트러트 타입 현가장치는 바퀴가 회전 가능하게 지지되는 너클 암과, 상기 너클 암과 차체 서브 프레임 사이에 연결되는 스트러트 바와, 상기 너클 암의 상측과 차체측 사이에 연결되어 완충작용을 수행하는 쇽 업소버를 포함하는 차량용 스트러트 타입 현가장치에 있어서, 상기 쇽 업소버와 차체 연결부는 각 변형이 억제되도록 형성되고, 상기 쇽 업소버와 너클암 연결부는 각 변형이 허용되도록 형성되어짐을 특징으로 한다.Vehicle strut type suspension according to the present invention for realizing the above object is a knuckle arm on which the wheel is rotatably supported, a strut bar connected between the knuckle arm and the body subframe, the upper side and the body side of the knuckle arm In a strut type suspension device for a vehicle including a shock absorber connected between the shock absorbers, the shock absorber and the vehicle body connection part are formed so that each deformation is suppressed, and the shock absorber and the knuckle arm connection part may allow each deformation. Characterized in that it is formed.

이하, 첨부된 도면을 참조하여 본 발명의 일실시예를 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명의 일 실시예에 따른 스트러트 타입 현가장치의 구성도이고, 도 4는 본 발명의 일 실시예에 따른 스트러트 타입 현가장치의 작동 상태도이다.3 is a configuration diagram of a strut type suspension device according to an embodiment of the present invention, Figure 4 is an operational state diagram of a strut type suspension device according to an embodiment of the present invention.

본 발명의 일 실시예에 따른 스트러트 타입 현가장치는 바퀴(2)가 회전 가능하게 지지되는 너클 암(4)과, 상기 너클 암(4)과 차체 서브 프레임 사이에 연결되는 스트러트 바(6)와, 상기 너클 암(4)의 상측과 차체(10)측 사이에 연결되어 완충작용을 수행하는 쇽 업소버(8)로 구성된다.The strut type suspension device according to an embodiment of the present invention includes a knuckle arm 4 on which the wheel 2 is rotatably supported, and a strut bar 6 connected between the knuckle arm 4 and the vehicle subframe. And a shock absorber 8 connected between the upper side of the knuckle arm 4 and the vehicle body 10 side to perform a buffering action.

상기 너클 암(4)과 스트러트 바(6)가 연결되는 연결부를 지점 O라 하고, 쇽 업소버(8)와 너클 암(4)이 연결되는 연결부를 지점 P라 하고, 쇽 업소버(8)와 차체(10)측이 연결되는 연결부는 지점 T라 칭한다.The connection part to which the knuckle arm 4 and the strut bar 6 are connected is called point O, and the connection part to which the shock absorber 8 and the knuckle arm 4 are connected is called point P, and the shock absorber 8 and the vehicle body The connecting portion to which the (10) side is connected is called point T.

여기에서, 지점 Q 즉, 쇽 업소버(8)와 차체(10)측 사이의 연결부는 변형이 억제되도록 고정된 상태이고, 상기 지점 A 즉, 너클 암(4)과 쇽 업소버(8)의 연결부는 변형이 허용되는 구조로 형성되며, 지점 A를 중심으로 쇽 업소버(8)의 하단이 차체 내측방향으로 일정 폭만큼 이동된 상태로 배치된다.Here, the point Q, that is, the connecting portion between the shock absorber 8 and the vehicle body 10 side is fixed to suppress the deformation, and the connection point between the point A, that is, the knuckle arm 4 and the shock absorber 8, is It is formed in a structure that allows deformation, and the lower end of the shock absorber 8 around the point A is disposed in a state of being moved by a predetermined width in the vehicle body inward direction.

이러한 경우, 범프 운동시 변형되는 지지점이 기존의 지점 T에서 지점 A로 로 이동된 상태로 형성된다.In this case, the supporting point deformed during the bump movement is formed in a state in which it moves from the existing point T to the point A.

이와 같이 이루어진 본 발명에 따른 차량용 스트러트 현가장치의 작용을 다음에서 설명한다.The operation of the vehicle strut suspension device according to the present invention thus made will be described below.

차량 주행 중 범프 운동시 지점 B가 차량의 외측 방향인 지점 B'로 이동됨과 아울러 스트러트 바(6)의 경사에 따라 지점 A가 차량의 내측 방향인 지점 A'로 이동되므로 부의 캠버를 크게 할 수 있다. 그리고, 지점 A와 지점 B 사이의 간격이 짧아지기 때문에 지점 A가 차량의 내측방향으로 이동되는 폭이나 지점 B가 차량의 외측방향으로 이동되는 폭에 비해 캠버각 변화를 크게 할 수 있다.During the bumping movement of the vehicle, the point B is moved to the point B ', which is the outward direction of the vehicle, and the point A is moved to the point A', which is the inner direction of the vehicle, according to the inclination of the strut bar 6, thereby increasing the negative camber. have. Further, since the distance between the points A and B is shortened, the camber angle change can be made larger than the width at which point A is moved inward of the vehicle or the width at which point B is moved outward of the vehicle.

여기에서, 쇽 업소버(8)와 차체(10)측 연결부인 지점 T를 차량의 외측에 위치시킬 수 있어, 엔진룸 확보에 유리하고, 킹핀경사각을 작게 설계할 수 있기 때문에 조향시 선회 외륜을 부의 캠버각으로 만들기가 유리하다.Here, the point T, which is the connection portion between the shock absorber 8 and the vehicle body 10 side, can be located outside the vehicle, which is advantageous for securing the engine room, and the kingpin inclination angle can be designed to be negative. It is advantageous to make the camber angle.

그리고, 휠 오프셋에 해당되는 바퀴 중심점에서 너클 암의 중심점을 연결하는 직선(D)의 길이를 줄일 수 있다.In addition, the length of the straight line D connecting the center point of the knuckle arm at the wheel center point corresponding to the wheel offset may be reduced.

따라서, 상기와 같이 구성되고 작용되는 본 발명에 따른 차량용 스트러트 타입 현가장치는 너클 암과 쇽 업소버의 연결부를 범프 운동시 변형되는 지점으로 형성하고, 쇽 업소버와 차체 연결부를 고정시킴으로써, 범프 운동시 부의 캠버를 최대화할 수 있어, 차량 선회시 조향력을 줄이고, 시미 발생을 줄일 수 있고, 엔진룸의 크기를 확보할 수 있는 이점이 있다.Therefore, the strut type suspension device for a vehicle according to the present invention constructed and operated as described above is formed at a point where the knuckle arm and the shock absorber are deformed during the bump movement, and by fixing the shock absorber and the vehicle body connection part, Since the camber can be maximized, it is possible to reduce steering force when turning the vehicle, reduce staining, and secure the size of the engine room.

또한, 조향시 선회 외륜의 캠버가 증가되므로 선회 접지성 및 응답성을 향상시킬 수 있는 이점이 있다.In addition, since the camber of the turning outer ring is increased during steering, there is an advantage that can improve the turning groundability and response.

Claims (2)

바퀴가 회전 가능하게 지지되는 너클 암과, 상기 너클 암과 차체 서브 프레임 사이에 연결되는 스트러트 바와, 상기 너클 암의 상측과 차체측 사이에 연결되어 완충작용을 수행하는 쇽 업소버를 포함하는 차량용 스트러트 타입 현가장치에 있어서,A vehicle strut type including a knuckle arm on which a wheel is rotatably supported, a strut bar connected between the knuckle arm and the body subframe, and a shock absorber connected between an upper side and the body side of the knuckle arm to perform a shock absorbing action. In suspension, 상기 쇽 업소버와 차체 연결부는 각 변형이 억제되도록 형성되고, 상기 쇽 업소버와 너클암 연결부는 각 변형이 허용되도록 형성되어짐을 특징으로 하는 차량용 스트러트 타입 현가장치.The shock absorber and the vehicle body connection portion is formed so that each deformation is suppressed, the shock absorber and knuckle arm connection portion is characterized in that the vehicle is configured to allow each deformation. 제 1 항에 있어서,The method of claim 1, 상기 쇽 업소버는 상기 너클 암과 연결되는 하단이 차체 내측방향으로 일정 폭만큼 이동된 상태로 배치되어짐을 특징으로 하는 차량용 스트러트 타입 현가장치.The shock absorber is a strut type suspension device for a vehicle, characterized in that the lower end connected to the knuckle arm is disposed in a state moved by a predetermined width in the vehicle body direction.
KR10-2000-0074201A 2000-12-07 2000-12-07 Strut type suspension of vehicle KR100456864B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111731061A (en) * 2020-06-24 2020-10-02 北京汽车股份有限公司 Macpherson suspension and vehicle
CN113734284A (en) * 2021-08-31 2021-12-03 东风汽车集团股份有限公司 Steering hand force adjustable mechanism and adjusting method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0131301B1 (en) * 1992-12-28 1998-04-21 전성원 Suspension apparatus
JPH11129717A (en) * 1997-10-31 1999-05-18 Nissan Motor Co Ltd Front suspension device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111731061A (en) * 2020-06-24 2020-10-02 北京汽车股份有限公司 Macpherson suspension and vehicle
CN113734284A (en) * 2021-08-31 2021-12-03 东风汽车集团股份有限公司 Steering hand force adjustable mechanism and adjusting method

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