KR20040053959A - Camber control suspension of vehicle - Google Patents

Camber control suspension of vehicle Download PDF

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Publication number
KR20040053959A
KR20040053959A KR1020020080429A KR20020080429A KR20040053959A KR 20040053959 A KR20040053959 A KR 20040053959A KR 1020020080429 A KR1020020080429 A KR 1020020080429A KR 20020080429 A KR20020080429 A KR 20020080429A KR 20040053959 A KR20040053959 A KR 20040053959A
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KR
South Korea
Prior art keywords
hydraulic
vehicle
control suspension
camber control
hydraulic cylinders
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KR1020020080429A
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Korean (ko)
Inventor
우승훈
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현대자동차주식회사
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Priority to KR1020020080429A priority Critical patent/KR20040053959A/en
Publication of KR20040053959A publication Critical patent/KR20040053959A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00Resilient suspensions for a single wheel
    • B60G3/18Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/26Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02Interconnection 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
    • B60G21/06Interconnection 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 fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/422Links for mounting suspension elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D17/00Means on vehicles for adjusting camber, castor, or toe-in

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

Abstract

PURPOSE: A camber control suspension of a vehicle is provided to simultaneously improve the stability in the straight drive of the vehicle and a turning contact characteristic. CONSTITUTION: A camber control suspension of a vehicle comprises hydraulic cylinders(310,312) mounted to each upper link of a double wishbone type, to change the overall length of a cylinder link, and a hydraulic hose(320) interconnecting the hydraulic cylinders and guiding the flowing of hydraulic oil to make the hydraulic oil filled in the hydraulic cylinders move reciprocally to each hydraulic cylinder.

Description

차량의 캠버 제어 현가장치{CAMBER CONTROL SUSPENSION OF VEHICLE}CAMBER CONTROL SUSPENSION OF VEHICLE}

본 발명은 차량의 현가장치에 관한 것으로서, 특히 차량의 캠버 제어 현가장치에 관한 것이다.The present invention relates to a suspension of a vehicle, and more particularly to a camber control suspension of a vehicle.

도 1과 도 2는 일반적인 방식의 차량의 현가장치로 캠버(Camber), 트래드(Tread)의 변화상태를 도시한 도면이다.1 and 2 are diagrams illustrating a change state of camber and tread as a suspension device of a vehicle of a general type.

종래 기술의 경우, 도 1에 도시된 바와 같이 차륜(100)과 차체(102)를 연결하는 현가장치(Suspension)를 구성하는 경우 차량의 범프(Bump)시 캠버, 트래드의 변화를 최소화할 수 있다.In the prior art, when a suspension is configured to connect the wheel 100 and the vehicle body 102 as illustrated in FIG. 1, changes in camber and tread may be minimized when the vehicle is bumped. .

이와는 반대로 도 2에 도시된 바와 같이 차륜(200)과 차체(202)를 연결하는 현가장치를 구성하는 경우에는 차량의 범프(Bump)시 캠버, 트래드의 변화가 커지게 된다.On the contrary, as shown in FIG. 2, when a suspension device connecting the wheel 200 and the vehicle body 202 is configured, changes in camber and tread are increased when the vehicle is bumped.

그런데, 위와 같은 방법을 사용할 때 도 1에 도시된 현가장치를 장착한 차량의 직진 주행 시에는 현가장치에 불필요한 측력(Lateral Force)의 발생이 최소화되어서 직진 안정성에 유리한 반면, 차량의 선회 시에는 선회 외륜의 캠버가 차량의 롤(Roll) 각 만큼 과도하게 양의 값을 가지므로 선회력(Cornering Force)이 약해진다.However, when the above method is used, when the straight vehicle of the vehicle equipped with the suspension shown in FIG. 1 is minimized, unnecessary generation of side force (Lateral Force) is minimized, which is advantageous to the straight stability, while turning the vehicle when turning Since the camber of the outer ring has a positive value excessively by the roll angle of the vehicle, the turning force is weakened.

하지만, 도 2에 도시된 현가장치를 장착한 차량의 직진 주행 시에는 반대로 차량의 선회 시에 선회력(Cornering Force)이 좋아지는 반면, 직진 안정성이 떨어지게 된다.However, in the straight driving of the vehicle equipped with the suspension shown in FIG. 2, the turning force is improved while turning the vehicle, but the straight stability is lowered.

결국 두 조건을 모두 만족하는 현가장치를 기구적인 링크구조로 구성한다는 것은 곤란한 문제점이 있다.As a result, it is difficult to construct a mechanical link structure of a suspension device that satisfies both conditions.

본 발명의 목적은 차량의 직진 안정성과 선회 접지특성을 동시에 향상시킬 수 있는 차량의 캠버 제어 현가장치를 제공하는데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a camber control suspension of a vehicle capable of simultaneously improving the linear stability and the turning ground characteristics of the vehicle.

도 1과 도 2는 일반적인 방식의 차량의 현가장치로 캠버, 트래드의 변화상태를 도시한 도면.1 and 2 is a view showing a change state of the camber and the tread as a suspension of the vehicle of the general manner.

도 3은 본 발명의 실시예에 따른 차량의 캠버 제어 현가장치의 구성을 도시한 도면.3 is a view showing the configuration of a camber control suspension of a vehicle according to an embodiment of the present invention.

도 4a와 도 4b는 본 발명의 실시예에 따른 차량의 캠버 제어 현가장치의 동작상태를 도시한 도면.4A and 4B illustrate an operating state of a camber control suspension of a vehicle according to an embodiment of the present invention.

상기와 같은 목적을 달성하기 위하여 본 발명은 차량의 캠버 제어 현가장치에 있어서, 더블 위시본(Double Wishbone) 타입(Type)의 각각의 어퍼 링크(Upper Link)위치에 장착되어 내부에 충진된 유압유의 이동에 따라 실린더 링크의 길이를변화시키는 각각의 유압 실린더와; 상기 각각의 유압 실린더를 서로 연결하고 상기 각각의 유압 실린더 내부에 충진된 유압유가 각각의 유압 실린더로 상호 이동할 수 있도록 유압유의 흐름을 안내하는 유압 호스를 포함하여 구성하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a camber control suspension of a vehicle, wherein the hydraulic fluid is filled in the upper link position of each of the double wishbone types. Respective hydraulic cylinders for varying the length of the cylinder link with movement; It characterized in that it comprises a hydraulic hose for connecting the hydraulic cylinders to each other and guide the flow of the hydraulic oil so that the hydraulic oil filled in each of the hydraulic cylinders to move to each hydraulic cylinder.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. 하기 설명 및 첨부 도면과 같은 많은 특정 상세들이 본 발명의 보다 전반적인 이해를 제공하기 위해 나타나 있으나, 이들 특정 상세들은 본 발명의 설명을 위해 예시한 것으로 본 발명이 그들에 한정됨을 의미하는 것은 아니다. 그리고 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

도 3을 참조하여 본 발명의 실시예에 따른 차량의 캠버 제어 현가장치의 구성을 설명한다.Referring to Figure 3 will be described the configuration of a camber control suspension of a vehicle according to an embodiment of the present invention.

본 발명의 실시예는 차량의 캠버 제어 현가장치에 있어서, 유압 실린더(310, 312), 유압 호스(320)를 포함하여 구성한다.Embodiment of the present invention comprises a hydraulic cylinder (310, 312), the hydraulic hose 320 in the camber control suspension of the vehicle.

유압 실린더(310, 312)는 도 3에 도시된 바와 같이 더블 위시본(Double Wishbone) 타입(Type)의 각각의 어퍼 링크(Upper Link)위치에 장착되어 내부에 충진된 유압유의 이동에 따라 실린더 링크(Cylinder Link)의 전체 길이를 변화시키는 기능을 한다.The hydraulic cylinders 310 and 312 are mounted at respective Upper Link positions of the Double Wishbone Type as shown in FIG. 3, and the cylinder links are moved according to the movement of the hydraulic oil filled therein. This function changes the overall length of the (Cylinder Link).

유압 호스(320)는 각각의 유압 실린더(310, 312)를 서로 연결하고 각각의 유압 실린더(310, 312) 내부에 충진된 유압유가 유압의 차이에 따라 각각의 유압 실린더(310, 312)로 상호 이동할 수 있도록 유압유의 흐름을 안내하는 기능을 한다.The hydraulic hose 320 connects the respective hydraulic cylinders 310 and 312 to each other, and the hydraulic oil filled in the respective hydraulic cylinders 310 and 312 is mutually connected to the respective hydraulic cylinders 310 and 312 according to the hydraulic pressure difference. It functions to guide the flow of hydraulic oil so that it can move.

상기한 바와 같이 본 발명의 실시예에서는 도 3에 도시된 바와 같이 더블 위시본(Double Wishbone) 타입(Type)의 현가장치(Suspension)를 구성하는 각각의 어퍼 링크(Upper Link)를 유압 실린더(310, 312)로 구성하고, 유압 실린더(310, 312) 내부에 유압유를 충진한다.As described above, in the embodiment of the present invention, as shown in FIG. 3, each upper link constituting a suspension of a double wishbone type is connected to a hydraulic cylinder 310. , 312, and fills hydraulic oil into the hydraulic cylinders 310 and 312.

그리고, 각각의 유압 실린더(310, 312)는 유압 호스(320)를 통하여 서로 연결하고 양측 유압 실린더(310, 312)에 작용하는 유압의 차이에 따라 유압유가 각각의 유압 실린더(310, 312)로 상호 이동할 수 있도록 한다.In addition, the hydraulic oils 310 and 312 are connected to each other through the hydraulic hose 320, and the hydraulic oil flows into the respective hydraulic cylinders 310 and 312 according to the difference in the hydraulic pressure acting on both hydraulic cylinders 310 and 312. Allow them to move together.

도 4a와 도 4b를 참조하여 본 발명의 실시예에 따른 차량의 캠버 제어 현가장치의 동작상태를 설명한다.An operation state of a camber control suspension of a vehicle according to an embodiment of the present invention will be described with reference to FIGS. 4A and 4B.

상기와 같은 구성으로 이루어진 본 발명의 실시예에 따른 현가장치는 도 4에 도시된 바와 같이 양측(좌측, 우측)의 차륜(300)이 동시에 범프/리바운드(Bump/Rebound) 시에는 양측의 유압 실린더(310, 312)에 동등한 압력이 증가하거나 감소하기 때문에 양측 유압 실린더(310, 312) 간의 유압 차이가 발생하지 않는다.As shown in FIG. 4, the suspension device according to the embodiment of the present invention having the configuration as described above has hydraulic cylinders at both sides when the wheels 300 at both sides (left and right) are bump / rebound at the same time. Since the pressure equivalent to (310, 312) increases or decreases, the hydraulic pressure difference between the two hydraulic cylinders (310, 312) does not occur.

따라서, 양측의 유압 실린더(310, 312) 간에 유압 차이가 발생할 때 유압 호스(320)를 통해 각각의 유압 실린더(310, 312)로 이동되던 유압유의 흐름과는 달리 각각의 유압 실린더(310, 312)로부터 유압 호스(320)를 통하여 이동되던 유압유의 흐름이 억제되어 유압 실린더(310, 312)가 형성하는 실린더 링크(Cylinder Link)는 고정 링크(Rigid Link)와 같이 작동한다.Therefore, unlike the flow of hydraulic oil which is moved to each of the hydraulic cylinders 310 and 312 through the hydraulic hose 320 when a hydraulic difference occurs between the hydraulic cylinders 310 and 312 on both sides, the respective hydraulic cylinders 310 and 312 The flow of the hydraulic oil which has been moved through the hydraulic hose 320 is suppressed so that the cylinder link formed by the hydraulic cylinders 310 and 312 operates like a rigid link.

따라서 평행한 더블 위시본(Parallel Double Wishbone)과 같이 대차 캠버가 거의 "0"에 근접하는 상태를 유지하게 되므로 대지 캠버도 거의 "0"에 근접하는 상태를 유지하게 된다.Therefore, as the parallel double wishbone (Parallel Double Wishbone) and the balance camber is kept close to the "0" state, the ground camber also stays close to the "0" state.

한편, 도 4b에 도시된 바와 같이 차량이 롤(Roll) 운동을 하는 경우에는 범프(Bump)측 유압 실린더(310)의 압력은 증가하고 리바운드(Rebound)측 유압 실린더(312)의 압력은 감소하기 때문에 범프측 유압 실린더(310)로부터 유압 호스(320)를 통해 리바운드측 유압 실린더(312)로 유압유가 이동하게 되므로 범프측 유압 실린더(310)의 길이는 줄어들고 리바운드측 유압 실린더(312)의 길이는 증가하게 된다.Meanwhile, as shown in FIG. 4B, when the vehicle performs a roll motion, the pressure of the bump side hydraulic cylinder 310 increases and the pressure of the rebound side hydraulic cylinder 312 decreases. Therefore, since the hydraulic oil is moved from the bump side hydraulic cylinder 310 to the rebound side hydraulic cylinder 312 through the hydraulic hose 320, the length of the bump side hydraulic cylinder 310 is reduced and the length of the rebound side hydraulic cylinder 312 is reduced. Will increase.

따라서, 도 4b에 도시된 바와 같이 대지 캠버가 거의 "0"에 근접하는 상태를 유지하게 된다.Thus, as shown in Fig. 4B, the ground camber is kept close to " 0 ".

상술한 바와 같이 본 발명에 따른 차량의 캠버 제어 현가장치는 차량의 직진 안정성과 선회 접지특성을 동시에 향상시킬 수 있으며, 직진 안정성 향상에 따라 운전 편의성을 향상시킬 수 있는 효과가 있다.As described above, the camber control suspension of the vehicle according to the present invention can improve the linear stability and the turning ground characteristics of the vehicle at the same time, and there is an effect of improving the driving convenience according to the improvement of the straight stability.

또한, 액티브 시스템(Active System)에 비해 부품과 공정을 감소할 수 있으며, 경량화 및 원가 절감의 효과가 있다.In addition, parts and processes can be reduced compared to an active system, and the weight and cost can be reduced.

Claims (1)

차량의 캠버 제어 현가장치에 있어서,In the camber control suspension of a vehicle, 더블 위시본(Double Wishbone) 타입(Type)의 각각의 어퍼 링크(Upper Link)위치에 장착되어 내부에 충진된 유압유의 이동에 따라 실린더 링크의 전체 길이를 변화시키는 각각의 유압 실린더와;Respective hydraulic cylinders mounted at respective Upper Link positions of a Double Wishbone Type to change the overall length of the cylinder link according to the movement of the hydraulic oil filled therein; 상기 각각의 유압 실린더를 서로 연결하고 상기 각각의 유압 실린더 내부에 충진된 유압유가 유압의 차이에 따라 각각의 유압 실린더로 상호 이동할 수 있도록 유압유의 흐름을 안내하는 유압 호스를 포함하여 구성하는 것을 특징으로 하는 차량의 캠버 제어 현가장치.And a hydraulic hose for connecting the hydraulic cylinders to each other and guiding the flow of hydraulic oil so that the hydraulic oil filled in the hydraulic cylinders can be mutually moved to each hydraulic cylinder according to the difference in the hydraulic pressure. Camber control suspension of a vehicle.
KR1020020080429A 2002-12-16 2002-12-16 Camber control suspension of vehicle KR20040053959A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101219941B1 (en) * 2006-11-13 2013-01-08 현대자동차주식회사 Rolling reducing device in vehicle
KR101465524B1 (en) * 2013-06-10 2014-11-26 현대로템 주식회사 Wheel-axle set active steering equipment for railway vehicle
CN112389150A (en) * 2020-11-19 2021-02-23 中联重科股份有限公司 Oil filling assembly and oil filling method for suspension system of mining dump truck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101219941B1 (en) * 2006-11-13 2013-01-08 현대자동차주식회사 Rolling reducing device in vehicle
KR101465524B1 (en) * 2013-06-10 2014-11-26 현대로템 주식회사 Wheel-axle set active steering equipment for railway vehicle
CN112389150A (en) * 2020-11-19 2021-02-23 中联重科股份有限公司 Oil filling assembly and oil filling method for suspension system of mining dump truck
CN112389150B (en) * 2020-11-19 2022-06-10 中联重科股份有限公司 Oil filling assembly and oil filling method for suspension system of mining dump truck

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