KR20050068628A - Air spring system for vehicle - Google Patents

Air spring system for vehicle Download PDF

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Publication number
KR20050068628A
KR20050068628A KR1020030100276A KR20030100276A KR20050068628A KR 20050068628 A KR20050068628 A KR 20050068628A KR 1020030100276 A KR1020030100276 A KR 1020030100276A KR 20030100276 A KR20030100276 A KR 20030100276A KR 20050068628 A KR20050068628 A KR 20050068628A
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KR
South Korea
Prior art keywords
cylinder
coupled
vehicle
shock absorber
piston
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KR1020030100276A
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Korean (ko)
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KR100559890B1 (en
Inventor
우승훈
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현대자동차주식회사
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Priority to KR1020030100276A priority Critical patent/KR100559890B1/en
Publication of KR20050068628A publication Critical patent/KR20050068628A/en
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Publication of KR100559890B1 publication Critical patent/KR100559890B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0523—Regulating distributors or valves for pneumatic springs
    • B60G17/0525—Height adjusting or levelling valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • 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
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/202—Height or leveling valve for air-springs

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

Abstract

본 발명은 차량용 공기스프링 시스템에 관한 것으로, 내부에 작동유체(21)가 가득 충진되면서 서스펜션측으로 결합되는 실린더(31), 이 실린더(31)내에서 직선왕복 이동하는 피스톤(32), 이 피스톤(32)과 일단이 결합되고 차체측으로 타단이 결합되는 피스톤로드(33)를 구비한 쇽업소버(30)와; 상기 쇽업소버(30)와 인접한 차체측에 다수개가 고정되도록 장착되면서 그 중 어느 한 개는 유압관로(41)를 통해 상기 실린더(31)와 연통됨은 물론 각각의 내부에는 공기층(51a,52a,53a...)이 존재하도록 작동유체(21)가 채워지는 오일탱크(51,52,53...)와; 상기 오일탱크(51,52,53...)끼리를 연통하는 유압파이프(61,62...)상에 장착되는 밸브부재(71,72...)와; 상기 밸브부재(71,72...)의 개폐시기를 제어하는 콘트롤러(80);로 구성되어져, 전체적인 시스템의 간단화로 인해 제조원가의 절감과 시스템의 중량감소 및 연비개선에 도움이 있게 되고, 더불어 고장발생률의 감소 및 소음의 감소를 통해 승차감도 향상시킬 수 있도록 된 것이다.The present invention relates to a vehicle air spring system, a cylinder 31 coupled to the suspension side while the working fluid 21 is filled in the inside, a piston 32 linearly reciprocating in the cylinder 31, the piston ( A shock absorber 30 having a piston rod 33 having one end coupled to the other end and coupled to the vehicle body; A plurality of fixed parts are mounted on the side of the vehicle body adjacent to the shock absorber 30, and any one of them is in communication with the cylinder 31 through the hydraulic pipe 41, as well as in each of the air layers 51a, 52a, 53a. Oil tanks (51, 52, 53, ...) filled with the working fluid (21) such that ...) is present; Valve members (71, 72 ...) mounted on hydraulic pipes (61, 62 ...) for communicating with the oil tanks (51, 52, 53 ...); Controller 80 for controlling the opening and closing time of the valve member (71, 72 ...); is composed of, because of the overall system simplification and help to reduce the manufacturing cost, weight reduction and fuel economy of the system, and It is possible to improve the ride comfort by reducing the failure rate and noise.

Description

차량용 공기스프링 시스템{air spring system for vehicle}Air spring system for vehicle {air spring system for vehicle}

본 발명은 차량용 공기스프링 시스템에 관한 것으로, 특히 별도의 동력원을 사용하지 않더라도 차고조절기능이 가능하도록 구성하여 전체적인 제조원가의 절감과 고장발생률의 감소 및 승차감을 향상시킬 수 있도록 하는 차량용 공기스프링 시스템에 관한 것이다.The present invention relates to a vehicle air spring system, and more particularly to a vehicle air spring system that can be configured to enable the height adjustment function without using a separate power source to reduce the overall manufacturing cost, reduce the failure rate and ride comfort will be.

일반적으로, 현재 양산되고 있는 고급형 승용차에는 차고조절기능을 갖춘 공기스프링 시스템이 장착되어 있는 바, 그 구성은 다음과 같다.In general, high-end passenger cars in mass production is equipped with an air spring system with a height adjustment function, the configuration is as follows.

즉, 도 1에 도시된 바와 같이 일단은 차체측으로 결합되고 타단은 차량의 서스펜션측으로 결합되어 설치되는 쇽업소버(1)와, 상기 쇽업소버(1)의 상단에 벨로우즈(2)를 매개로 기밀이 유지되도록 장착되는 공기챔버하우징(3)과, 엔진의 동력을 전달받아 구동되는 공기압축기(4)와, 압축된 공기를 저장하는 공기탱크(5)와, 상기 공기압축기(4)와 공기탱크(5)를 연결하는 관로(6)상에 장착되는 제1밸브(7)와, 상기 공기탱크(5)와 공기챔버하우징(3)을 연결하는 관로(8)상에 장착되는 제2밸브(9)와, 차량의 상태에 따라 상기 공기압축기(4)의 구동시기를 제어함은 물론 상기 제1,2밸브(7,9)의 개폐시기를 제어하는 콘트롤러(11)로 구성된다.That is, as shown in Fig. 1, one end is coupled to the vehicle body side and the other end is coupled to the suspension side of the vehicle is installed, the shock absorber 1, and the airtight is closed through the bellows (2) on the upper end of the shock absorber (1) An air chamber housing (3) mounted to be maintained, an air compressor (4) driven by the power of the engine, an air tank (5) for storing compressed air, the air compressor (4) and an air tank ( 5) a first valve 7 mounted on a conduit 6 for connecting the second valve 9 and a second valve 9 mounted on a conduit 8 for connecting the air tank 5 and the air chamber housing 3; And a controller 11 for controlling the driving timing of the air compressor 4 and the opening / closing timing of the first and second valves 7, 9 according to the state of the vehicle.

여기서, 상기 쇽업소버(1)는 실린더(1a)와 피스톤(1b) 및 피스톤로드(1c)를 갖추고 있게 되고, 이에 따라 상기 실린더(1a)는 서스펜션측으로 상기 피스톤(1b)은 차체측으로 결합되어 진다.Here, the shock absorber 1 is provided with a cylinder 1a, a piston 1b and a piston rod 1c, whereby the cylinder 1a is coupled to the suspension side and the piston 1b is coupled to the vehicle body side. .

또한, 상기의 제1밸브(7)는 공기압축기(4)와 공기탱크(5)의 연결만을 컨트롤하는 양방향 밸브이고, 상기 제2밸브(9)는 공기탱크(5)와 공기챔버하우징(3) 및 대기측으로의 연결을 컨트롤하는 삼방향 밸브이다.In addition, the first valve (7) is a bidirectional valve for controlling only the connection of the air compressor (4) and the air tank (5), the second valve (9) is the air tank (5) and the air chamber housing (3) ) And a three-way valve that controls the connection to the atmosphere.

따라서, 차량의 상태(고속주행 상태, 저속주행 상태, 주정차 상태, 중량 등)에 따라 차고를 상승시킬 필요가 있게 되면, 콘트롤러(11)의 제어에 의해 제1밸브(7)가 개방되고 제2밸브(9)는 공기탱크(5)와 공기챔버하우징(3)를 연결하도록 조정되어, 공기탱크(5)내의 압축공기는 공기챔버하우징(3)으로 공급되게 된다.Therefore, when it is necessary to raise the garage according to the state of the vehicle (high-speed driving state, low-speed driving state, parking state, weight, etc.), the first valve 7 is opened by the control of the controller 11 and the second The valve 9 is adjusted to connect the air tank 5 and the air chamber housing 3 so that the compressed air in the air tank 5 is supplied to the air chamber housing 3.

이에 따라, 벨로우즈(2)는 압축공기가 공급된 만큼 상하방향으로 확장되게 되고, 이로 인해 쇽업소버(1)의 압축량이 벨로우즈(2)에 의해 제한됨으로써 차량의 차고는 상승된 효과를 갖게 된다.Accordingly, the bellows 2 is expanded in the vertical direction as much as compressed air is supplied, and thus the amount of compression of the shock absorber 1 is limited by the bellows 2, so that the vehicle height is increased.

반대로, 차량의 상태에 따라 차고를 하강시킬 필요가 있게 되면, 콘트롤러(11)의 제어에 의해 제1밸브(7)는 밀폐되고 제2밸브(9)는 공기챔버하우징(3)과 대기와 연결되도록 조정되게 된다.On the contrary, when it is necessary to lower the garage according to the state of the vehicle, the first valve 7 is sealed and the second valve 9 is connected to the air chamber housing 3 and the atmosphere by the control of the controller 11. Will be adjusted.

이에 따라, 공기챔버하우징(3)내의 공기는 관로(8) 및 제2밸브(9)를 통해 대기로 배출되고, 벨로우즈(2)는 압축공기가 배출된 만큼 수축되며, 또한 쇽업소버(1)도 벨로우즈(2)가 수축된 만큼 압축됨으로써 차량의 차고가 하강된 효과를 갖게 된다.Accordingly, the air in the air chamber housing 3 is discharged to the atmosphere through the conduit 8 and the second valve 9, the bellows 2 is contracted as the compressed air is discharged, and the shock absorber 1 Since the bellows 2 is compressed as much as it contracts, the vehicle height of the vehicle is lowered.

그러나, 상기와 같은 종래의 공기스프링 시스템은, 동력을 이용하여 구동되는 공기압축기(4)가 필수적으로 사용됨으로써 전체적인 시스템의 중량의 증대되고 이에 따라 연비개선에 도움이 되지 못하는 문제점이 있을 뿐만 아니라, 고장발생률의 증가와 원가상승 및 소음발생으로 인한 승차감의 저하를 유발하는 문제점이 있었다.However, in the conventional air spring system as described above, the air compressor 4 driven by the power is essentially used, thereby increasing the weight of the overall system and thus not improving fuel efficiency. There was a problem of causing a decrease in ride comfort due to an increase in the failure rate and a cost increase and noise.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, Accordingly, the present invention has been made to solve the above problems,

공기압축기의 사용을 배제시킨 상태에서도 차고조절이 가능하도록 시스템의 구성을 개선하여, 중량감소를 통해 연비개선에 도움을 줄 수 있도록 하고, 고장발생률의 감소 및 원가의 절감을 이룩할 수 있도록 함은 물론, 소음의 감소를 통해 승차감도 향상시킬 수 있도록 하는 차량용 공기스프링 시스템을 제공함에 그 목적이 있다.By improving the system's configuration so that the height can be adjusted even without the use of air compressors, it is possible to help improve fuel efficiency by reducing the weight, reduce the occurrence rate of the failure and reduce the cost. In addition, the object of the present invention is to provide a vehicle air spring system that can improve the riding comfort by reducing noise.

상기와 같은 목적을 달성하기 위한 본 발명의 공기스프링 시스템은, 내부에 작동유체가 가득 충진되면서 서스펜션측으로 결합되는 실린더, 이 실린더내에서 직선왕복 이동하는 피스톤, 이 피스톤과 일단이 결합되고 차체측으로 타단이 결합되는 피스톤로드를 구비한 쇽업소버와; 상기 쇽업소버와 인접한 차체측이나 또는 서스펜션측에 다수개가 고정되도록 장착되면서 그 중 어느 한 개는 유압관로를 통해 상기 실린더와 연통됨은 물론 각각의 내부에는 공기층이 존재하도록 작동유체가 채워지는 오일탱크와; 상기 오일탱크끼리를 연통하는 유압파이프상에 장착되는 밸브부재와; 상기 밸브부재의 개폐시키를 제어하는 콘트롤러;로 구성되는 것을 특징으로 한다.The air spring system of the present invention for achieving the above object, the cylinder is coupled to the suspension side while the working fluid is filled in the inside, the piston reciprocating linearly in this cylinder, the piston and one end is coupled and the other end to the vehicle body side A shock absorber having a piston rod coupled thereto; And a plurality of oil tanks in which a working fluid is filled so as to communicate with the cylinders through hydraulic lines as well as an air layer therein, while a plurality of fixed parts are mounted on a vehicle body or suspension side adjacent to the shock absorber. ; A valve member mounted on a hydraulic pipe communicating with the oil tanks; And a controller for controlling the opening and closing of the valve member.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 공기스프링 시스템을 설명하기 위한 개략적인 구성도로서, 본 발명에 따라 차고조절기능을 갖춘 차량의 공기스프링 시스템은 도 2에 도시된 바와 같이, 내부에 작동유체(21)가 가득 충진되면서 서스펜션측으로 결합되는 실린더(31), 이 실린더(31)내에서 직선왕복 이동하는 피스톤(32), 이 피스톤(32)과 일단이 결합되고 차체측으로 타단이 결합되는 피스톤로드(33)를 구비한 쇽업소버(30)와; 상기 쇽업소버(30)와 인접한 차체측이나 또는 서스펜션측에 다수개가 고정되도록 장착되면서 그 중 어느 한 개는 유압관로(41)를 통해 상기 실린더(31)와 연통됨은 물론 각각의 내부에는 공기층(51a,52a,53a...)이 존재하도록 작동유체(21)가 채워지는 오일탱크(51,52,53...)와; 상기 오일탱크(51,52,53...)끼리를 연통하는 유압파이프(61,62...)상에 장착되는 밸브부재(71,72...)와; 상기 밸브부재(71,72...)의 개폐시키를 제어하는 콘트롤러(80);로 구성된다.Figure 2 is a schematic configuration diagram for explaining the air spring system according to the present invention, the air spring system of the vehicle with a height adjustment function according to the present invention, as shown in Figure 2, the working fluid 21 therein Is filled with the cylinder 31 is coupled to the suspension side, the piston 32 linearly reciprocating in the cylinder 31, the piston rod one end is coupled to the piston 32 and the other end is coupled to the vehicle body side 33 Shock absorber 30 having a; While being mounted to be fixed to the vehicle body side or the suspension side adjacent to the shock absorber 30, any one of them is in communication with the cylinder 31 through the hydraulic pipe 41, as well as the air layer 51a inside each Oil tanks (51, 52, 53, ...) filled with the working fluid (21) so that the (52a, 53a ...) are present; Valve members (71, 72 ...) mounted on hydraulic pipes (61, 62 ...) for communicating with the oil tanks (51, 52, 53 ...); And a controller 80 that controls opening and closing of the valve members 71, 72 ....

여기서, 상기 오일탱크(51,52,53...)는 유압파이프(61,62...)를 통해 직렬로 연결되면서 차체측이나 또는 서스펜션측으로 장착된다.Here, the oil tanks (51, 52, 53 ...) are mounted in the vehicle body side or suspension side while being connected in series through the hydraulic pipe (61, 62 ...).

한편, 상기의 유압관로(41)는 유압의 원활한 전달만 가능하다면 파이프나 또는 튜브 중 어느 것을 사용하여도 무방함은 물론이다.On the other hand, the hydraulic pipe line 41 may be any pipe or tube may be used as long as it is possible to smoothly transfer the hydraulic pressure.

따라서, 차량의 상태(고속주행 상태, 저속주행 상태, 주정차 상태, 중량 등)에 따라 차고를 상승시킬 필요가 있게 되면, 콘트롤러(80)의 제어에 의해 모든 밸브부재(71,72...)가 밀폐되게 된다.Therefore, when it is necessary to raise the garage according to the state of the vehicle (high speed driving state, low speed driving state, parking state, weight, etc.), all the valve members 71, 72 ... are controlled by the controller 80. Will be sealed.

이와 같이, 밸브부재(71,72...)가 밀폐되면 쇽업소버(30)의 실린더(31)는 유압관로(41)를 통해 첫 번째의 오일탱크(51)하고만 연결되고, 이에 따라 상기 쇽업소버(30)가 압축되는 힘을 받더라도 공기층(51a)의 반발력에 의해 압축작동이 제한되게 된다.As such, when the valve members 71, 72... Are sealed, the cylinder 31 of the shock absorber 30 is connected only to the first oil tank 51 through the hydraulic line 41. Even if the shock absorber 30 receives a compression force, the compression operation is limited by the repulsive force of the air layer 51a.

따라서, 쇽업소버(30)의 압축작동이 진행되지 않게 되면 압축작동이 진행된 상태보다 차량의 차고는 상승된 효과를 갖게 되는 것이다.Therefore, when the compression operation of the shock absorber 30 does not proceed, the vehicle's height is higher than the compression operation.

반대로, 차량의 상태에 따라 차고를 하강시킬 필요가 있게 되면, 콘트롤러(11)의 제어에 의해 밸브부재(71,72...)가 개방되게 된다.On the contrary, when it is necessary to lower the garage according to the state of the vehicle, the valve members 71, 72 ... are opened by the control of the controller 11.

이와 같이, 밸브부재(71,72...)가 개방되면 쇽업소버(30)는 공기층(51a,52a,53a...)이 감소되는 체적만큼 압축작동을 하게 되고, 이에 따라 차량의 차고는 쇽업소버(30)가 압축된 양만큼 하강된 효과를 갖게 되는 것이다.As such, when the valve members 71, 72... Are open, the shock absorber 30 performs a compression operation by a volume in which the air layers 51a, 52a, 53a... Are reduced. The shock absorber 30 will have the effect of being lowered by the compressed amount.

한편, 차고를 하강시키고자 할 때 상기의 모든 밸브부재(71,72...)들은 콘트롤러(11)의 제어에 의해 한번에 개방될 수도 있고, 또한 하강시키고자 하는 양만큼 한 개씩 순차적으로 개방시킬 수도 있게 된다.On the other hand, when the garage is to be lowered, all the valve members (71, 72 ...) may be opened at a time by the control of the controller (11), and also one by one by the amount to be lowered sequentially. You can also

즉, 상기의 밸브부재(71,72...)들이 순차적으로 개방될 때에는 상기 실린더(31)로부터 근접한 밸브부재(71)부터 개방이 이루어지게 된다.That is, when the valve members 71, 72... Are sequentially opened, the valve members 71, 72... Are opened from the valve member 71 close to the cylinder 31.

따라서, 본 발명에 따른 공기스프링 시스템은 밸브부재(71,72...)의 단순 개폐작동만으로도 충분히 차고조절기능을 갖출 수 있게 됨으로써, 종래와 같이 별도의 동력원을 필요로 하는 공기압축기(4)의 사용을 배제시킬 수가 있게 되며, 이에 따라 전체적인 시스템의 중량감소 및 제조원가를 절감시킬 수 있게 된다.Therefore, the air spring system according to the present invention can be equipped with a height control function sufficiently by the simple opening and closing operation of the valve members (71, 72 ...), the air compressor (4) requiring a separate power source as in the prior art It is possible to eliminate the use of, thereby reducing the overall system weight and manufacturing costs.

또한, 본 발명의 시스템은 중량감소를 통해 연비개선에 도움이 되는 잇점도 있게 되고, 아울러 고장발생률의 감소 및 소음의 감소를 통해 승차감도 향상시킬 수 있는 잇점도 있게 된다.In addition, the system of the present invention also has the advantage of improving fuel efficiency through weight reduction, and also has the advantage of improving the riding comfort through the reduction of the failure rate and noise.

이상 설명한 바와 같이 본 발명에 의한 공기스프링 시스템은, 구성의 간단화로 인해 전체적인 제조원가의 절감과 시스템의 중량감소 및 연비개선에 도움이 있게 되고, 더불어 고장발생률의 감소 및 소음의 감소를 통해 승차감도 향상되는 효과가 있게 된다.As described above, the air spring system according to the present invention helps to reduce the overall manufacturing cost, improve the weight and fuel efficiency of the system due to the simplification of the configuration, and improve the riding comfort through the reduction of the failure rate and the noise. Become effective.

도 1은 종래의 공기스프링 시스템을 설명하기 위한 개략적인 구성도,1 is a schematic diagram illustrating a conventional air spring system;

도 2는 본 발명에 따른 공기스프링 시스템을 설명하기 위한 개략적인 구성도이다.Figure 2 is a schematic diagram for explaining the air spring system according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

21 - 작동유체 30 - 쇽업소버21-working fluid 30-shock absorber

31 - 실린더 32 - 피스톤31-Cylinder 32-Piston

33 - 피스톤로드 41 - 유압관로33-Piston Rod 41-Hydraulic Pipeline

51,52,53 - 오일탱크 51a,52a,53a - 공기층51,52,53-Oil tank 51a, 52a, 53a-Air layer

61,62 - 유압파이프 71,72 - 밸브부재61,62-Hydraulic Pipe 71,72-Valve Member

80 - 콘트롤러80-controller

Claims (2)

내부에 작동유체(21)가 가득 충진되면서 서스펜션측으로 결합되는 실린더(31), 이 실린더(31)내에서 직선왕복 이동하는 피스톤(32), 이 피스톤(32)과 일단이 결합되고 차체측으로 타단이 결합되는 피스톤로드(33)를 구비한 쇽업소버(30)와;A cylinder 31 coupled to the suspension side while the working fluid 21 is filled in the inside thereof, a piston 32 linearly reciprocating in the cylinder 31, and one end of the piston 32 are coupled to the other end thereof. A shock absorber 30 having a piston rod 33 coupled thereto; 상기 쇽업소버(30)와 인접한 차체측이나 또는 서스펜션측에 다수개가 고정되도록 장착되면서 그 중 어느 한 개는 유압관로(41)를 통해 상기 실린더(31)와 연통됨은 물론 각각의 내부에는 공기층(51a,52a,53a...)이 존재하도록 작동유체(21)가 채워지는 오일탱크(51,52,53...)와;While being mounted to be fixed to the vehicle body side or the suspension side adjacent to the shock absorber 30, any one of them is in communication with the cylinder 31 through the hydraulic pipe 41, as well as the air layer 51a inside each Oil tanks (51, 52, 53, ...) filled with the working fluid (21) so that the (52a, 53a ...) are present; 상기 오일탱크(51,52,53...)끼리를 연통하는 유압파이프(61,62...)상에 장착되는 밸브부재(71,72...)와;Valve members (71, 72 ...) mounted on hydraulic pipes (61, 62 ...) for communicating with the oil tanks (51, 52, 53 ...); 상기 밸브부재(71,72...)의 개폐시키를 제어하는 콘트롤러(80);A controller (80) for controlling opening and closing of the valve members (71, 72 ...); 로 구성되는 차량용 공기스프링 시스템.Vehicle air spring system consisting of. 제 1항에 있어서, 상기 오일탱크(51,52,53...)는 유압파이프(61,62...)를 통해 직렬로 연결되면서 차체측이나 또는 서스펜션측으로 장착되는 것을 특징으로 하는 차량용 공기스프링 시스템.2. The vehicle air according to claim 1, wherein the oil tanks (51, 52, 53 ...) are mounted in the vehicle body side or the suspension side while being connected in series through hydraulic pipes (61, 62 ...). Spring system.
KR1020030100276A 2003-12-30 2003-12-30 air spring system for vehicle KR100559890B1 (en)

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