KR20120029791A - Active roll stabilization system - Google Patents

Active roll stabilization system Download PDF

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Publication number
KR20120029791A
KR20120029791A KR1020100091848A KR20100091848A KR20120029791A KR 20120029791 A KR20120029791 A KR 20120029791A KR 1020100091848 A KR1020100091848 A KR 1020100091848A KR 20100091848 A KR20100091848 A KR 20100091848A KR 20120029791 A KR20120029791 A KR 20120029791A
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KR
South Korea
Prior art keywords
rear wheel
hydraulic
valve
actuator
front wheel
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KR1020100091848A
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Korean (ko)
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문덕수
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주식회사 인팩
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Priority to KR1020100091848A priority Critical patent/KR20120029791A/en
Publication of KR20120029791A publication Critical patent/KR20120029791A/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
    • B60G17/015—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
    • B60G17/0152—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 action on a particular type of suspension unit
    • B60G17/0157—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 action on a particular type of suspension unit non-fluid unit, e.g. electric motor
    • 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
    • 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
    • B60G17/0408—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
    • 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
    • B60G17/056—Regulating distributors or valves for hydropneumatic systems
    • 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
    • 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
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • 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
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/416—Fluid actuator using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the actuator
    • 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
    • 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

Abstract

PURPOSE: A device for stabilizing an active roll is provided to reduce entire size because two valves having overlapped function is unified to set a valve. CONSTITUTION: A device for stabilizing an active roll comprises front and rear wheel actuators(3,4), a valve unit(5), a hydraulic pump(7), and a hydraulic source(9). The valve unit comprises a steering safety valve(51), a steering control valve(53), and front and rear wheel proportional control valves(55,56). The steering safety valve returns working fluid to the hydraulic source wherein the working fluid is supplied to the front wheel actuator operating abnormally. The steering control valve controls supplying direction of the working fluid to the rear wheel actuator. The front and rear wheel proportional control valves controls amount of the working fluid, supplying to the front or rear wheel actuator, in proportion to driving resistance against the front and rear wheel.

Description

능동롤 안정화장치{Active roll stabilization system}Active roll stabilization system

본 발명은 능동롤 안정화장치에 관한 것으로, 보다 상세하게는 차량의 롤(roll)을 제어하기 위해 차축에 장착되는 전후륜측 액츄에이터 중, 전륜측 액츄에이터에 연결된 방향제어밸브와 페일세이프티(fail-safety) 밸브를 하나의 밸브로 일원화하여 전체적으로 구조의 컴팩트화를 도모하고자 한 능동롤 안정화장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active roll stabilization device, and more particularly, to a directional control valve and fail-safety connected to a front wheel actuator among front and rear wheel actuators mounted on an axle for controlling a roll of a vehicle. The present invention relates to an active roll stabilization device that aims to compact the structure by unifying the valve into a single valve.

일반적으로, 능동롤 안정화장치는 차량이 코너를 선회할 때와 같이 주행 상황의 변화로 인해 좌우 평형을 잃고 한 쪽으로 치우치는 롤(roll) 현상을 억제 또는 방지하기 위한 수단으로서, 전후륜 양측의 현가장치에 연결되어 차체에 고정된 스테이빌라이저바를 전후륜 액츄에이터에 의해 유압 제어하여 차체의 평형을 유지한다.In general, the active roll stabilization device is a means for suppressing or preventing a roll phenomenon in which the left and right sides are lost due to a change in driving conditions, such as when the vehicle turns a corner, and is rolled to one side. The stabilizer bar fixed to the vehicle body is hydraulically controlled by the front and rear wheel actuators to maintain the vehicle body balance.

그 한 예로서, 도 1에 도면부호 101로 도시된 능동롤 안정화장치를 들 수 있는 바, 이 능동롤 안정화장치(101)는 전륜 및 후륜측 액츄에이터(103,104), 이 전륜 및 후륜측 액츄에이터(103,104)로의 작동유 유동을 제어하는 밸브유닛(105), 이 밸브유닛(105)을 통해 전륜 및 후륜측 액츄에이터(103,104)로 작동유를 펌핑하는 유압펌프(107), 및 이 유압펌프(107)로 작동유를 공급하고, 전륜 및 후륜측 액츄에이터(103,104)로부터 복귀하는 작동유를 수용하는 유압원(109)으로 구성된다.As an example, an active roll stabilization device shown by reference numeral 101 in FIG. 1 may be used. The active roll stabilization device 101 includes front and rear wheel actuators 103 and 104, and the front and rear wheel actuators 103 and 104. The valve unit 105 for controlling the flow of hydraulic oil to the (), the hydraulic pump 107 for pumping the hydraulic oil through the valve unit 105 to the front and rear wheel actuators (103, 104), and the hydraulic pump 107 And a hydraulic pressure source 109 for supplying hydraulic oil returned from the front wheel and rear wheel actuators 103 and 104.

따라서, 능동롤 안정화장치(101)가 작동하면, 도 2에 도시된 바와 같이, 밸브유닛(105)의 방향제어밸브(151)가 정방향 제어됨으로써, 유압라인(L1)은 밸브(151)를 통해 유압라인(L7)과 연결되고, 유압라인(L7)은 페일세이프티 밸브(153)를 통해 전륜측 액츄에이터(103)의 제2 포트(P2)와 연결된다. 이와 동시에, 전륜측 액츄에이터(103)의 제1 포트(P1)는 페일세이프티 밸브(153)를 통해 유압라인(L8)과 연결되며, 유압라인(L8)은 방향제어밸브(151)를 통해 유압라인(L4)으로 연결된다. Therefore, when the active roll stabilization device 101 is operated, as shown in FIG. 2, the direction control valve 151 of the valve unit 105 is controlled in the forward direction, such that the hydraulic line L1 is controlled through the valve 151. The hydraulic line L7 is connected, and the hydraulic line L7 is connected to the second port P2 of the front wheel side actuator 103 through the fail safety valve 153. At the same time, the first port P1 of the front wheel actuator 103 is connected to the hydraulic line L8 through the fail safety valve 153, and the hydraulic line L8 is connected to the hydraulic line through the directional control valve 151. Connected to (L4).

이때, 유압원(109)으로부터 유압펌프(107)에 의해 펌핑되어 유압라인(L1)으로 분기된 작동유는 밸브(151)와 밸브(153)를 거쳐 포트(P2)를 통해 전륜측 액츄에이터(103)로 유입되어 전륜측 액츄에이터(103)에 의해 차체의 균형을 잡는 쪽으로 스테이빌라이저바를 가압하여 차체의 롤을 억제하게 된다. 이와 동시에 포트(P1)에서 토출된 작동유는 밸브(153)와 밸브(151)를 거쳐 유압라인(L2)을 따라 유압원(109)으로 되돌아온다. 한편, 펌프(107)에서 펌핑되어 유압라인(L3)으로 분기된 작동유는 마찬가지로 방향전환밸브(151)를 통해 유압라인(L9)으로 연결되어 제3 포트(P3)를 통해 후륜측 액츄에이터(104)로 유입되어 후륜측 액츄에이터(104)에 의해 차체의 롤을 억제하게 되며, 이와 동시에 제4 포트(P4)에서 토출된 작동유는 유압라인(L10)으로 토출되어 밸브(151)를 거쳐 유압라인(L4)을 따라 유압원(109)으로 복귀한다. 아울러, 미설명 부호 155와 156은 펌프(107)에서 방향제어밸브(151)통해 전륜 및 후륜측 액츄에이터(103,104)로 공급되는 작동유의 유량을 제어하는 비례제어밸브이다. At this time, the hydraulic oil pumped by the hydraulic pump 107 from the hydraulic source 109 and branched to the hydraulic line (L1) is the front wheel side actuator 103 via the port (P2) via the valve 151 and the valve 153. The stabilizer bar is pressed toward the balance of the vehicle body by the front wheel-side actuator 103 to suppress the roll of the vehicle body. At the same time, the hydraulic oil discharged from the port P1 is returned to the hydraulic source 109 along the hydraulic line L2 via the valve 153 and the valve 151. On the other hand, the hydraulic oil pumped from the pump 107 and branched to the hydraulic line (L3) is likewise connected to the hydraulic line (L9) through the direction switching valve 151, the rear wheel-side actuator 104 through the third port (P3) The hydraulic fluid discharged from the fourth port P4 is discharged to the hydraulic line L10 through the valve 151 and the hydraulic line L4 is suppressed by the rear wheel actuator 104. Return to the hydraulic source 109. In addition, reference numerals 155 and 156 are proportional control valves for controlling the flow rate of the hydraulic oil supplied from the pump 107 to the front and rear wheel actuators 103 and 104 through the direction control valve 151.

반대로, 도 3에 도시된 바와 같이, 방향제어밸브(151)가 역정방향 제어되면, 유압라인(L1)으로 펌핑된 작동유는 밸브(151)를 통해 유압라인(L8)으로 연결되어 페일세이프티 밸브(153)를 통해 전륜측 액츄에이터(103)의 제1 포트(P1)로 공급되어 전륜측 액츄에이터(103)를 역방향으로 가압하여 차체의 롤을 억제하게 되며, 이와 동시에, 전륜측 액츄에이터(103)의 제2 포트(P2)에서 토출된 작동유는 페일세이프티 밸브(153)를 통해 유압라인(L7)에 연결되고, 방향전환밸브(151)를 통해 유압라인(L2)을 거쳐 유압원(109)에 복귀한다. 한편, 펌프(107)에서 펌핑되어 유압라인(L3)으로 분기된 작동유는 방향제어밸브(151)와 유압라인(L10)을 거쳐 후륜측 액츄에이터(104)의 제4 포트(P4)를 통해 후륜측 액츄에이터(104)로 유입되어 후륜측 액츄에이터(104)를 마찬가지로 역방향 제어한다. 이와 동시에, 제3 포트(P3)를 통해 후륜측 액츄에이터(104)에서 토출된 작동유는 유압라인(L9)과 방향제어밸브(151)를 거쳐서 유압라인(L4)을 따라 유압원(109)으로 되돌아온다.On the contrary, as shown in FIG. 3, when the direction control valve 151 is controlled in the reverse direction, the hydraulic oil pumped to the hydraulic line L1 is connected to the hydraulic line L8 through the valve 151 to fail the safety valve ( 153 is supplied to the first port P1 of the front wheel side actuator 103 to press the front wheel side actuator 103 in the reverse direction to suppress the roll of the vehicle body, and at the same time, the front wheel side actuator 103 The hydraulic oil discharged from the two ports P2 is connected to the hydraulic line L7 through the fail safety valve 153, and returns to the hydraulic source 109 via the hydraulic line L2 through the direction switching valve 151. . Meanwhile, the hydraulic oil pumped from the pump 107 and branched into the hydraulic line L3 passes through the fourth port P4 of the rear wheel actuator 104 via the direction control valve 151 and the hydraulic line L10. It flows into the actuator 104 and controls the rear wheel side actuator 104 similarly in a reverse direction. At the same time, the hydraulic oil discharged from the rear wheel actuator 104 through the third port P3 is returned to the hydraulic source 109 along the hydraulic line L4 via the hydraulic line L9 and the directional control valve 151. come.

아울러, 능동롤 안정화장치(1) 운전 중 방향전환밸브(151)에 고장이 발생하면 도 4에 도시된 것처럼, ECU제어를 통한 페일세이프티 밸브(153)의 작동으로 방향전환밸브(151)의 방향성에 관계없이 작동유는 유압원(109)으로 복귀한다. 즉, 전륜측 액츄에이터(3)와의 작동유 유통은 정지되고, 유압라인(L7)을 통해 페일세이프티 밸브(153)로 유입된 작동유는 유압라인(L8)을 통해 곧바로 방향전환밸브(151)를 거쳐 유압원(109)으로 되돌아가며, 이와 같이 유체 차단된 전륜측 액츄에이터(3)는 대기압 상태를 유지하면서 긴급상황에 대처하게 된다.In addition, if a failure occurs in the directional valve 151 during operation of the active roll stabilization device 1, as illustrated in FIG. 4, the directionality of the directional valve 151 is controlled by the operation of the fail safety valve 153 through ECU control. Regardless, the hydraulic oil returns to the hydraulic source 109. That is, the flow of the hydraulic fluid with the front wheel-side actuator 3 is stopped, and the hydraulic fluid flowing into the fail safety valve 153 through the hydraulic line L7 is directly passed through the direction switching valve 151 through the hydraulic line L8. Returning to the circle 109, the fluid-blocked front wheel actuator 3 responds to an emergency while maintaining an atmospheric pressure state.

그런데, 위와 같은 종래의 능동롤 안정화장치(101)는 방향제어밸브(151)와 페일세이프티 밸브(153)의 관로가 일부 종복되고, 또 이와 같이 관로 중복이 있음에도 불구하고, 밸브체를 이중으로 구성하고 있으므로, 그만큼 장치의 설비나 조립에 따른 작업공수나 비용이 증대되며, 전체적인 크기가 커져 설치나 취급에 불편이 따르는 문제점이 있었다.However, the conventional active roll stabilization apparatus 101 as described above partially overlaps the pipelines of the direction control valve 151 and the fail safety valve 153, and in this way, despite the overlapping of the pipelines, the valve body is configured in a double manner. As a result, the man-hours and costs associated with the installation and assembly of the apparatus are increased, and the overall size is increased, resulting in inconvenience in installation and handling.

또한, 밸브유닛(105) 전체를 2블록화하는 경우 도 5에 도시된 바와 같이, 하나의 블록에 필연적으로 페일세이프티 밸브(153)와 방향제어밸브(151-1) 두 개의 밸브가 배치되어야 하므로, 형상의 단순화를 도모할 수 없게 되는 문제점도 있었다. In addition, when the entire valve unit 105 is made into two blocks, as shown in FIG. 5, two valves of the fail safety valve 153 and the direction control valve 151-1 must be disposed in one block. There was also a problem in that the shape could not be simplified.

본 발명은 위와 같은 종래의 능동롤 안정화장치가 가지고 있는 문제점을 해결하기 위하여 안출된 것으로, 능동롤 안정화장치의 밸브유닛을 구성함에 있어 기능이 중복되는 두 개의 밸브를 일원화함으로써 또한 밸브유닛을 2블록화하는 경우 하나의 블록에 2개의 밸브가 배치되지 않도록 함으로써, 장치의 컴팩트화를 도모하는 데 그 목적이 있다. The present invention has been made to solve the problems of the conventional active roll stabilization device as described above, by constituting the valve unit of the active roll stabilization device by unifying the two valves with overlapping functions, and also the valve unit is divided into two blocks In this case, the purpose is to make the device compact by preventing two valves from being arranged in one block.

위와 같은 목적을 달성하기 위해 본 발명은 차량의 전륜 및 후륜 측 스테빌라이저바에 각각 설치되어, 상기 스테빌라이저바를 통해 상기 차량의 롤을 조정하는 전륜 및 후륜측 액츄에이터; 상기 전륜 및 후륜측 액츄에이터에 유체 연결되어, 제어부의 지령에 따라 상기 전륜 및 후륜측 액츄에이터의 동작을 제어하는 밸브유닛; 상기 밸브유닛의 상기 액츄에이터 대향측에 연결되어, 상기 밸브유닛으로 작동유를 펌핑하는 유압펌프; 및 상기 유압펌프에 의해 펌핑된 작동유를 상기 밸브유닛을 통해 상기 액츄에이터로 공급하거나, 상기 액츄에이터에서 상기 밸브유닛을 거쳐 복귀하는 작동유를 수용하는 유압원;으로 이루어지며, 상기 밸브유닛은, 상기 전륜측 액츄에이터와 상기 유압펌프 사이에 그리고 상기 전륜측 액츄에이터와 상기 유압원 사이에 배치되어 상기 전륜측 액츄에이터로의 작동유 공급방향을 제어하거나, 비정상 작동하는 상기 전륜측 액츄에이터로 공급될 작동유를 상기 유압원으로 복귀시키도록 되어 있는 방향제어 안전밸브; 상기 후륜측 액츄에이터와 상기 유압펌프 사이에 그리고 상기 후륜측 액츄에이터와 상기 유압원 사이에 배치되어 상기 후륜측 액츄에이터로의 작동유 공급방향을 제어하도록 되어 있는 방향제어밸브; 및 상기 유압펌프와 상기 방향제어 안전밸브 사이에 배치되거나 상기 유압펌프와 상기 방향제어밸브 사이에 배치되어, 상기 전륜 또는 후륜에 걸리는 주행저항에 비례하여 상기 전륜 또는 후륜측 액츄에이터에 공급되는 작동유의 양을 조절하도록 되어 있는 전륜 및 후륜측 비례제어밸브;로 구성되는 능동롤 안정화장치를 제공한다.In order to achieve the above object, the present invention is installed on each of the front and rear wheel stabilizer bar of the vehicle, the front wheel and rear wheel actuator for adjusting the roll of the vehicle through the stabilizer bar; A valve unit fluidly connected to the front and rear wheel actuators, the valve unit controlling the operation of the front and rear wheel actuators according to a command of a controller; A hydraulic pump connected to the actuator opposing side of the valve unit to pump hydraulic oil to the valve unit; And a hydraulic source for supplying hydraulic oil pumped by the hydraulic pump to the actuator through the valve unit or receiving hydraulic oil returned from the actuator to the actuator through the valve unit. It is arranged between the actuator and the hydraulic pump and between the front wheel-side actuator and the hydraulic source to control the hydraulic oil supply direction to the front-wheel actuator, or to return the hydraulic oil to be supplied to the front-wheel actuator that is abnormally operated to the hydraulic source. A directional safety valve adapted to be made; A direction control valve disposed between the rear wheel actuator and the hydraulic pump and between the rear wheel actuator and the hydraulic source to control a direction of supply of hydraulic oil to the rear wheel actuator; And an amount of hydraulic oil disposed between the hydraulic pump and the direction control safety valve or between the hydraulic pump and the direction control valve and supplied to the front wheel or the rear wheel actuator in proportion to the running resistance applied to the front wheel or the rear wheel. It provides an active roll stabilization device consisting of; front wheel and rear wheel proportional control valve is configured to adjust.

또한, 상기 밸브유닛은 하나의 블록 안에 설치되어 있는 것이 바람직하다.In addition, the valve unit is preferably installed in one block.

또한, 상기 전륜측 액츄에이터, 상기 방향제어 안전밸브, 및 상기 전륜측 비례제어밸브는 제1 블록에, 상기 후륜측 액츄에이터, 상기 방향제어밸브, 및 상기 후륜측 비례제어밸브는 제2 블록에 각각 배치되는 것이 바람직하다.The front wheel side actuator, the direction control safety valve, and the front wheel side proportional control valve are disposed in a first block, and the rear wheel actuator, the direction control valve, and the rear wheel side proportional control valve are respectively disposed in a second block. It is desirable to be.

따라서, 본 발명의 능동롤 안정화장치에 의하면, 전륜측 액츄에이터에 대한 작동유의 유동방향 제어와 페일세이프 제어를, 방향제어밸브와 페일세이프티 밸브를 일원화한 방향제어 안전밸브 하나로 수행할 수 있게 되므로, 밸브유닛의 구조를 보다 컴팩트하고, 단순한 형태로 개선할 수 있게 된다. 따라서, 능동롤 안정화장치의 조립공정을 줄이고 제조단가를 낮추어 생산성 향상에 이바지할 수 있게 되고, 밸브유닛의 설치나 조립 등 취급 편리성을 향상시킬 수 있게 된다.Therefore, according to the active roll stabilization device of the present invention, the flow direction control and fail-safe control of the hydraulic fluid to the front wheel-side actuator can be performed by one direction control safety valve that unifies the direction control valve and the fail safety valve. The structure of the unit can be improved in a more compact and simple form. Therefore, it is possible to reduce the assembly process of the active roll stabilization device and to lower the manufacturing cost, thereby contributing to the improvement of productivity, and the handling convenience such as the installation or assembly of the valve unit can be improved.

특히, 밸브유닛을 2블록으로 제작하고자 할 때, 하나의 블록에 하나의 밸브만 배치하면 되므로, 밸브를 2블록화하면서도 전체적인 크기를 소형으로 유지할 수 있게 된다. In particular, when the valve unit is to be manufactured in two blocks, since only one valve needs to be arranged in one block, it is possible to keep the overall size small while making the valve two blocks.

도 1은 종래의 능동롤 안정화장치를 도시한 유압회로도.
도 2는 도 1에 도시된 능동롤 안정화장치를 정방향 제어한 도면.
도 3은 도 1에 도시된 능동롤 안정화장치를 역방향 제어한 도면.
도 4는 도 1에 도시된 능동롤 안정화장치를 페일세이프 제어한 도면.
도 5는 도 1에 도시된 능동롤 안정화장치의 밸브유닛을 2블록화한 때, 2블록 중 한 쪽 블록을 도시한 유압회로도.
도 6은 본 발명에 따른 능동롤 안정화장치를 도시한 모식도.
도 7은 도 6에 도시된 능동롤 안정화장치를 보다 상세히 도시한 유압회로도.
도 8은 도 7에 도시된 능동롤 안정화장치의 밸브유닛을 2블록화하여 도시한 유압회로도.
도 9는 도 7에 도시된 능동롤 안정화장치를 정방향 제어한 도면.
도 10은 도 7에 도시된 능동롤 안정화장치를 역방향 제어한 도면.
도 11은 도 7에 도시된 능동롤 안정화장치를 페일세이프 제어한 도면.1 is a hydraulic circuit diagram showing a conventional active roll stabilization device.
FIG. 2 is a diagram of forward control of the active roll stabilization apparatus shown in FIG. 1; FIG.
Figure 3 is a reverse control of the active roll stabilization apparatus shown in FIG.
4 is a fail safe control of the active roll stabilization apparatus shown in FIG.
5 is a hydraulic circuit diagram showing one of the two blocks when the valve unit of the active roll stabilization device shown in FIG.
Figure 6 is a schematic diagram showing an active roll stabilization apparatus according to the present invention.
7 is a hydraulic circuit diagram showing in more detail the active roll stabilization apparatus shown in FIG.
8 is a hydraulic circuit diagram showing two blocks of the valve unit of the active roll stabilization apparatus shown in FIG.
9 is a diagram of forward control of the active roll stabilization apparatus shown in FIG.
10 is a reverse control of the active roll stabilization apparatus shown in FIG.
11 is a fail safe control of the active roll stabilization apparatus shown in FIG.

이하, 본 발명의 일실시예에 따른 능동롤 안정화장치를 첨부도면을 참조하여 설명한다.Hereinafter, an active roll stabilization apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.

본 발명의 능동롤 안정화장치는 도 6에 도면부호 1로 도시된 바와 같이, 현가장치와 함께 차체에 설치되어 주행 상황에 따라 차체에 발생하는 롤(roll) 현상을 억제하는 수단으로서, 도 7에 함께 도시된 것처럼 크게 전륜 및 후륜측 액츄에이터(3,4), 밸브유닛(5), 유압펌프(7), 및 유압원(9)에 의해 구성된다.As shown in FIG. 6, the active roll stabilization device of the present invention is a means installed in the vehicle body along with the suspension device and is a means for suppressing a roll phenomenon occurring in the vehicle body according to the driving situation. As shown together, it is largely constituted by the front and rear wheel actuators 3 and 4, the valve unit 5, the hydraulic pump 7 and the hydraulic source 9.

여기에서, 상기 전륜 및 후륜측 액츄에이터(3,4)는 도 6 및 도 7에 모식적으로 도시된 것처럼 밸브유닛(5)을 통해 유압원(9)으로부터 공급되는 유압에 의해 차체의 롤을 억제, 조정하도록 되어 있다. Here, the front wheel and rear wheel actuators 3 and 4 suppress the roll of the vehicle body by the hydraulic pressure supplied from the hydraulic source 9 through the valve unit 5 as shown schematically in FIGS. 6 and 7. It is supposed to be adjusted.

상기 밸브유닛(5)은 위와 같이 차량의 전륜 및 후륜측 액츄에이터(3,4)의 동작을 제어하는 부분으로, 마찬가지로 도 6에 개략적으로, 도 7에 보다 상세하게 도시된 것처럼, 유압펌프(7)와 전륜 및 후륜측 액츄에이터(3,4) 사이에 장착되어 있으며, 제어부(15)의 지령에 따라 개폐 동작이 이루어진다.The valve unit 5 is a part for controlling the operation of the front wheel and rear wheel actuators 3 and 4 of the vehicle as described above, likewise schematically shown in FIG. 6, as shown in more detail in FIG. 7, a hydraulic pump 7. And the front wheel and rear wheel actuators 3 and 4, the opening and closing operation is performed according to the command of the control unit 15.

이때, 밸브유닛(5)은 다시 도 7에 도시된 것처럼 방향제어 안전밸브(51), 방향제어밸브(53), 그리고 전륜 및 후륜측 비례제어밸브(55,56)로 이루어지는 바, 도 6에 도시된 바와 같이 하나의 블록 내에 컴팩트하게 구성될 수 있을 뿐 아니라, 다른 실시 형태로서 도 8에 도시된 것처럼 제1 블록(21) 및 제2 블록(22)으로 분할되어 구성될 수 있다. 이때, 제1 블록(21) 내에는 전륜측 액츄에이터(3), 방향제어 안전밸브(51), 및 전륜측 비례제어밸브(55)가 배치되며, 제2 블록(22) 내에는 후륜측 액츄에이터(4), 방향제어밸브(53), 및 후륜측 비례제어밸브(56)가 배치된다. At this time, the valve unit 5 is composed of the direction control safety valve 51, the direction control valve 53, and the front and rear wheel proportional control valves 55 and 56, as shown in FIG. In addition to being compactly configured in one block as shown, in another embodiment, it may be divided into a first block 21 and a second block 22 as shown in FIG. 8. At this time, the front wheel side actuator 3, the direction control safety valve 51, and the front wheel side proportional control valve 55 are disposed in the first block 21, and the rear wheel actuator (in the second block 22) is disposed. 4), the direction control valve 53 and the rear wheel proportional control valve 56 are disposed.

여기에서, 상기 방향제어 안전밸브(51)는 전륜측 액츄에이터(3)에 대한 동작방향과 안전성을 모두 제어할 수 있는 겸용 밸브로서, 전륜측 액츄에이터(3)와 유압펌프(7) 사이에, 또한 전륜측 액츄에이터(3)와 유압원(9) 사이에 배치되어 즉, 유압라인(L1)을 통해 펌프(7)와, 유압라인(L2)을 통해 유압원(9)과 각각 연결된다. 따라서, 방향제어 안전밸브(51)는 전륜측 액츄에이터(3)로의 작동유 공급방향을 제어하거나 또는 비정상 작동하는 전륜측 액츄에이터(3)와의 작동유 유통을 정지시키는데, 이때, 밸브(51)로 유입되어 전륜측 액츄에이터(3)로 공급되지 못한 작동유는 유압원(9)으로 복귀된다. 이를 위해, 방향제어 안전밸브(51)는 도 7에 도시된 것처럼, 3/6 밸브 즉, 3포지션/6웨이 밸브로 이루어지며, 솔레노이드와 스프링에 의해 탄력적으로 제어된다.Here, the direction control safety valve 51 is a combined valve that can control both the operation direction and safety for the front wheel side actuator (3), between the front wheel side actuator (3) and the hydraulic pump (7), It is arranged between the front wheel side actuator 3 and the hydraulic source 9, that is, connected to the pump 7 via the hydraulic line L1 and the hydraulic source 9 via the hydraulic line L2, respectively. Therefore, the direction control safety valve 51 controls the hydraulic oil supply direction to the front wheel side actuator 3 or stops the flow of hydraulic oil with the front wheel side actuator 3 which is abnormally operated. The hydraulic oil not supplied to the side actuator 3 is returned to the hydraulic pressure source 9. To this end, the direction control safety valve 51 is composed of a 3/6 valve, that is, a three-position / six-way valve, as shown in Figure 7, it is elastically controlled by a solenoid and a spring.

상기 방향제어밸브(53)는 후륜측 액츄에이터(4)로의 작동유 공급방향을 제어하는 밸브로서, 도 7에 도시된 바와 같이, 후륜측 액츄에이터(4)와 유압펌프(7) 사이에 그리고 후륜측 액츄에이터(4)와 유압원(9) 사이에 배치되어 즉, 유압라인(L3)을 통해 펌프(7)와, 유압라인(L4)을 통해 유압원(9)과 각각 연결되는 바, 후륜측 액츄에이터(4)로의 작동유 공급방향을 제어한다. 이를 위해 방향제어밸브(53)로는 도 7에 도시된 것처럼, 2/4 밸브 즉, 2포지션/4웨이 밸브가 사용되며, 마찬가지로 솔레노이드와 스프링에 의해 탄력적으로 제어된다.The directional control valve 53 is a valve for controlling the hydraulic oil supply direction to the rear wheel actuator 4, as shown in FIG. 7, between the rear wheel actuator 4 and the hydraulic pump 7 and the rear wheel actuator. (4) and the hydraulic source (9) is arranged, that is, connected to the pump (7) via the hydraulic line (L3), and the hydraulic source (9) via the hydraulic line (L4), respectively, the rear wheel actuator ( 4) Control the oil supply direction to the furnace. For this purpose, as illustrated in FIG. 7, a two-fourth valve, that is, a two-position / 4-way valve, is used as the direction control valve 53. Similarly, the direction control valve 53 is elastically controlled by a solenoid and a spring.

상기 전륜 및 후륜측 비례제어밸브(55,56)는 전륜 또는 후륜측 액츄에이터(3,4)에 공급되는 작동유의 양을 조절하는 밸브로서, 도 7에 도시된 바와 같이, 전륜측 비례제어밸브(55)는 유압펌프(7)와 방향제어 안전밸브(51) 사이에 즉, 유압라인(L1) 상에 배치되고, 후륜측 비례제어밸브(56)는 유압펌프(7)와 방향제어밸브(53) 사이에 즉, 유압라인(L3) 상에 각각 배치되며, 일반적인 비례제어밸브와 같이 솔레노이드와 스프링을 갖는 구성으로 이루어지는 바, 제어부(15)의 지령에 따라 전륜(11) 또는 후륜(12)에 걸리는 주행저항에 비례하여 전륜 및 후륜측 액츄에이터(3,4)로 공급되는 작동유의 양을 조절한다.The front wheel and rear wheel proportional control valves 55 and 56 are valves for adjusting the amount of hydraulic oil supplied to the front or rear wheel actuators 3 and 4, and as shown in FIG. 55 is disposed between the hydraulic pump 7 and the direction control safety valve 51, that is, on the hydraulic line L1, and the rear wheel proportional control valve 56 is the hydraulic pump 7 and the direction control valve 53. In other words, disposed on the hydraulic line (L3), respectively, consisting of a solenoid and a spring like a general proportional control valve, according to the command of the control unit 15 to the front wheel 11 or the rear wheel 12 The amount of hydraulic oil supplied to the front and rear wheel actuators 3 and 4 is adjusted in proportion to the running resistance.

상기 유압펌프(7)는 유압원(9)의 작동유를 밸브유닛(5)을 거쳐 전륜 및 후륜측 액츄에이터(3,4)까지 펌핑하여 공급하는 수단으로서, 도 6 및 도 7에 도시된 바와 같이, 유압라인(L1,L3)을 통해 밸브유닛(5)의 액츄에이터(3,4) 대향측에 각각 연결되어 유압원(9)의 작동유를 밸브유닛(5)을 통해 전륜 및 후륜측 액츄에이터(3,4)로 각각 공급한다. 한편, 위와 같은 작동을 위해, 유압펌프(7)는 별도의 전동모터(M) 또는 엔진에 각각 연결되어 구동력을 얻는다. The hydraulic pump 7 is a means for pumping and supplying the hydraulic oil of the hydraulic source 9 to the front and rear wheel actuators 3 and 4 via the valve unit 5, as shown in FIGS. 6 and 7. , The hydraulic lines L1 and L3 are connected to the actuators 3 and 4 on the opposite sides of the valve unit 5, respectively, so that the hydraulic oil of the hydraulic source 9 can be transferred to the front and rear wheel actuators 3 through the valve unit 5. And 4). On the other hand, for the above operation, the hydraulic pump 7 is connected to a separate electric motor (M) or the engine, respectively, to obtain a driving force.

상기 유압원(9)은 위에서 언급한 바와 같이 작동유를 공급하는 공급원으로서, 오일탱크와 같은 다양한 형태로 형성되는 바, 도 6 및 도 7에 도시된 것처럼 유압라인(L5)을 통해 펌프(7)와 유체 연결되며, 유압라인(L2)을 통해 전륜측 액츄에이터(3)와, 유압라인(L3)을 통해 후륜측 액츄에이터(4)와 각각 유체 연결된다. 따라서, 유압펌프(7)에 의해 펌핑된 작동유를 밸브유닛(5)을 통해 전륜 및 후륜측 액츄에이터(3,4)로 공급하거나 또는 전륜 및 후륜측 액츄에이터(3,4)에서 토출되어 밸브유닛(5)을 거쳐 복귀하는 작동유를 수용하도록 되어 있다.The hydraulic pressure source 9 is a supply source for supplying hydraulic oil as mentioned above, and is formed in various forms such as an oil tank, and the pump 7 is provided through the hydraulic line L5 as shown in FIGS. 6 and 7. And fluid connection with the front wheel side actuator 3 through the hydraulic line L2 and the rear wheel actuator 4 through the hydraulic line L3, respectively. Therefore, the hydraulic oil pumped by the hydraulic pump 7 is supplied to the front and rear wheel actuators 3 and 4 through the valve unit 5 or discharged from the front and rear wheel actuators 3 and 4 so that the valve unit ( It is to receive the hydraulic oil returning via 5).

이제, 위와 같이 구성되는 본 발명에 따른 능동롤 안정화장치(1)의 작용을 설명하면 다음과 같다.Now, the operation of the active roll stabilization device 1 according to the present invention configured as described above is as follows.

차량이 코너링을 할 때 차축이 선회하는 방향쪽으로 기울어지는 롤현상을 방지 또는 억제하기 위해 본 발명의 능동롤 안정화장치(1)가 사용되는 바, 차속센서, 횡가속도센서, 조향각센서 등으로부터의 신호에 따라 제어부(15)에 의해 최초 작동이 개시된다. 제어부(15)로부터 지령을 받은 구동모터(M) 또는 엔진에 의해 펌프(7)가 위와 같이 가동을 개시하면, 오일탱크와 같은 유압원(9)에 수용된 작동유는 도 6 및 도 7에 도시된 유압라인(L5)을 통해 펌프(7)까지 흡인되어 유압라인(L6)을 통해 밸브유닛(5)으로 유입된다. 유압라인(L6)을 통해 밸브유닛(5)에 이른 작동유는 유압라인(L1,L3)을 따라 전륜측과 후륜측으로 분기되며, 분기 후 먼저 전륜 및 후륜측 비례제어밸브(55,56)에 의해 전륜 및 후륜측 액츄에이터(3,4)로 공급되는 유량이 각각 조정된다. When the vehicle is cornering, the active roll stabilization device 1 of the present invention is used to prevent or suppress a roll phenomenon that is inclined toward the direction in which the axle is turning. A signal from a vehicle speed sensor, a lateral acceleration sensor, a steering angle sensor, and the like In accordance with the first operation is started by the control unit 15. When the pump 7 starts operation as described above by the driving motor M or the engine commanded from the control unit 15, the hydraulic oil contained in the hydraulic source 9 such as an oil tank is shown in FIGS. 6 and 7. The pump is sucked up to the pump 7 through the hydraulic line L5 and flows into the valve unit 5 through the hydraulic line L6. The hydraulic oil reaching the valve unit 5 through the hydraulic line L6 is branched to the front wheel side and the rear wheel side along the hydraulic lines L1 and L3. The flow rates supplied to the front wheel and rear wheel actuators 3 and 4 are respectively adjusted.

이때, 유압라인(L1)에 연결된 방향제어 안전밸브(51)는 작동정지 상태에서 도 7에 도시된 중립위치에 있다가, 능동롤 안정화장치(1)가 작동 개시되면 제어부(15) 지령에 따라 동작하는 솔레노이드(52)에 의해 정방향 또는 역방향으로 작동되는 바, 예컨대 도 9에 도시된 바와 같이 정방향 제어되는 경우 전륜측 액츄에이터(3)의 제1 포트(P1)로 유체 연결되어 전륜측 액츄에이터(3)를 정방향으로 작동시키며, 이와 동시에 전륜측 액츄에이터(3)에서 제2 포트(P2)를 통해 토출된 작동유체는 유압라인(L2)을 통해 유압원(9)으로 되돌아온다. 한편, 유압라인(L3)에 연결된 방향제어밸브(53)는 제어부(15)의 지령에 따라 동작하는 솔레노이드(54)에 의해 도 9에 도시된 것처럼 정방향 제어되며, 이때 후륜측 액츄에이터(4)의 제3 포트(P3)로 유체 연결되어 후륜측 액츄에이터(4)를 정방향으로 작동시킨다. 이와 동시에, 후륜측 액츄에이터(4)에서 제4 포트(P4)를 통해 토출된 작동유체는 유압라인(L4)을 통해 유압원(9)으로 복귀하게 된다. At this time, the direction control safety valve 51 connected to the hydraulic line (L1) is in the neutral position shown in Figure 7 in the operation stop state, when the active roll stabilization device (1) starts to operate according to the control unit 15 command It is operated in the forward or reverse direction by the operative solenoid 52, for example, when it is forward controlled as shown in Figure 9 fluidly connected to the first port (P1) of the front wheel side actuator (3) to the front wheel side actuator (3) ) Is operated in the forward direction, and at the same time, the working fluid discharged from the front wheel-side actuator 3 through the second port P2 is returned to the hydraulic source 9 through the hydraulic line L2. On the other hand, the direction control valve 53 connected to the hydraulic line (L3) is forward-controlled as shown in FIG. 9 by the solenoid 54 operating in accordance with the command of the control unit 15, wherein the rear wheel actuator (4) It is fluidly connected to the third port P3 to operate the rear wheel actuator 4 in the forward direction. At the same time, the working fluid discharged from the rear wheel actuator 4 through the fourth port P4 is returned to the hydraulic source 9 through the hydraulic line L4.

반대로, 도 10에 도시된 바와 같이, 능동롤 안정화장치(1)가 역방향으로 작동하는 경우에는 방향제어 안전밸브(51)가 솔레노이드(52)에 의해 역방향 제어되어 유압라인(L1)이 제2 포트(P2)로, 제1 포트(P1)는 유압라인(L2)으로 각각 연결되며, 따라서 작동유는 유압라인(L1)에서 밸브(51)를 거쳐 제2 포트(P2)로 유입되고, 이와 동시에 전륜측 액츄에이터(3)에서 제1 포트(P1)를 통해 유압라인(L2)으로 토출되어 유압원(9)으로 복귀한다. 한편, 방향제어밸브(53)도 마찬가지로 솔레노이드(54)의 역방향 제어에 의해 유압라인(L3)이 밸브(53)를 통해 후륜측 액츄에이터(4)의 제4 포트(P4)에, 그리고 제3 포트(P3)는 밸브(53)를 통해 유압라인(L4)으로 각각 유체 연결됨으로써, 작동유는 유압라인(L3)에서 밸브(53)를 거쳐 제4 포트(P4)로 유입되고, 이와 동시에 후륜측 액츄에이터(4)에서는 제3 포트(P3)를 통해 유압라인(L4)으로 토출되어 유압원(9)으로 되돌아간다.On the contrary, as shown in FIG. 10, when the active roll stabilization device 1 operates in the reverse direction, the direction control safety valve 51 is reversely controlled by the solenoid 52 so that the hydraulic line L1 is connected to the second port. At P2, the first port P1 is connected to the hydraulic line L2, respectively, so that the hydraulic oil flows into the second port P2 from the hydraulic line L1 via the valve 51 and at the same time the front wheels. The discharge from the side actuator 3 to the hydraulic line L2 through the first port P1 returns to the hydraulic source 9. On the other hand, the directional control valve 53 is similarly controlled by the solenoid 54 so that the hydraulic line L3 passes through the valve 53 to the fourth port P4 of the rear wheel actuator 4 and to the third port. P3 is respectively fluidly connected to the hydraulic line (L4) through the valve 53, the hydraulic oil flows into the fourth port (P4) via the valve 53 in the hydraulic line (L3), at the same time the rear wheel actuator In (4), it is discharged to the hydraulic line L4 through the 3rd port P3, and returns to the hydraulic pressure source 9.

또한, 능동롤 안정화장치(1) 운전 중 긴급한 상황이 발생하는 경우, 도 11에 도시된 바와 같이, 전륜측 액츄에이터(3)는 중립위치로 제어된다. 이에 따라 유압라인(L1)을 통해 방향제어 안전밸브(51)로 유입된 작동유는 유압라인(L2)을 통해 곧바로 유압원(9)으로 복귀하고, 전륜측 액츄에이터(3)는 유체 차단됨으로써, 전륜측 액츄에이터(3)의 유압회로가 대기압 상태를 유지하면서 긴급상황을 대처하게 된다.Further, when an urgent situation occurs during the operation of the active roll stabilizing device 1, as shown in Fig. 11, the front wheel side actuator 3 is controlled to a neutral position. Accordingly, the hydraulic oil introduced into the direction control safety valve 51 through the hydraulic line L1 is returned to the hydraulic source 9 directly through the hydraulic line L2, and the front wheel side actuator 3 is blocked by the fluid, so that the front wheel The hydraulic circuit of the side actuator 3 maintains the atmospheric pressure to cope with an emergency.

1 : 능동롤 안정화장치 3 : 전륜측 액츄에이터
4 : 후륜측 액츄에이터 5 : 밸브유닛
7 : 유압펌프 9 : 유압원
11 : 전륜 12 : 후륜
13, 14 : 스테빌라이저바 15 : 제어부
21 : 제1 블록 22 : 제2 블록
51 : 방향제어 안전밸브 53 : 방향제어밸브
55 : 전륜측 비례제어밸브 56 : 후륜측 비례제어밸브
L1, L2, L3, L4, L5, L6 : 유압라인
P1, P2, P3, P4 : 제1, 제2, 제3, 및 제4 포트1: Active Roll Stabilizer 3: Front Wheel Actuator
4: Rear wheel side actuator 5: Valve unit
7: hydraulic pump 9: hydraulic source
11: front wheel 12: rear wheel
13, 14: stabilizer bar 15: control unit
21: first block 22: second block
51: direction control safety valve 53: direction control valve
55: proportional control valve for front wheel 56: proportional control valve for rear wheel
L1, L2, L3, L4, L5, L6: Hydraulic Line
P1, P2, P3, P4: first, second, third, and fourth ports

Claims (3)

차량의 전륜(11) 및 후륜(12) 측 스테빌라이저바(13,14)에 각각 설치되어, 상기 스테빌라이저바(13,14)를 통해 상기 차량의 롤(roll)을 조정하는 전륜 및 후륜측 액츄에이터(3,4);
상기 전륜 및 후륜측 액츄에이터(3,4)에 유체 연결되어, 제어부(15)의 지령에 따라 상기 전륜 및 후륜측 액츄에이터(3,4)의 동작을 제어하는 밸브유닛(5);
상기 밸브유닛(5)의 상기 액츄에이터(3,4) 대향측에 연결되어, 상기 밸브유닛(5)으로 작동유를 펌핑하는 유압펌프(7); 및
상기 유압펌프(7)에 의해 펌핑된 작동유를 상기 밸브유닛(5)을 통해 상기 액츄에이터(3,4)로 공급하거나, 상기 액츄에이터(3,4)에서 상기 밸브유닛(5)을 거쳐 복귀하는 작동유를 수용하는 유압원(9);으로 이루어지며,
상기 밸브유닛(5)은,
상기 전륜측 액츄에이터(3)와 상기 유압펌프(7) 사이에 그리고 상기 전륜측 액츄에이터(3)와 상기 유압원(9) 사이에 배치되어 상기 전륜측 액츄에이터(3)로의 작동유 공급방향을 제어하거나, 비정상 작동하는 상기 전륜측 액츄에이터(3)로 공급될 작동유를 상기 유압원(9)으로 복귀시키도록 되어 있는 방향제어 안전밸브(51);
상기 후륜측 액츄에이터(4)와 상기 유압펌프(7) 사이에 그리고 상기 후륜측 액츄에이터(4)와 상기 유압원(9) 사이에 배치되어 상기 후륜측 액츄에이터(4)로의 작동유 공급방향을 제어하도록 되어 있는 방향제어밸브(53); 및
상기 유압펌프(7)와 상기 방향제어 안전밸브(51) 사이에 배치되거나 상기 유압펌프(7)와 상기 방향제어밸브(53) 사이에 배치되어, 상기 전륜(11) 또는 후륜(12)에 걸리는 주행저항에 비례하여 상기 전륜 또는 후륜측 액츄에이터(3,4)에 공급되는 작동유의 양을 조절하도록 되어 있는 전륜 및 후륜측 비례제어밸브(55,56);로 구성되는 것을 특징으로 하는 능동롤 안정화장치.The front wheel and rear wheel side, which are installed at the stabilizer bars 13 and 14 on the front wheel 11 and the rear wheel 12 sides of the vehicle, respectively, and adjust the roll of the vehicle through the stabilizer bars 13 and 14. Actuators 3 and 4;
A valve unit (5) fluidly connected to the front and rear wheel actuators (3,4) for controlling the operation of the front and rear wheel actuators (3,4) according to a command from the control unit (15);
A hydraulic pump (7) connected to opposite sides of the actuators (3,4) of the valve unit (5) to pump hydraulic oil to the valve unit (5); And
Hydraulic oil pumped by the hydraulic pump 7 is supplied to the actuators 3 and 4 through the valve unit 5, or the hydraulic oil returned from the actuators 3 and 4 via the valve unit 5. It consists of a hydraulic pressure source 9;
The valve unit 5,
Disposed between the front wheel side actuator 3 and the hydraulic pump 7 and between the front wheel side actuator 3 and the hydraulic source 9 to control the hydraulic oil supply direction to the front wheel side actuator 3; A direction control safety valve (51) adapted to return hydraulic oil to be supplied to the front wheel-side actuator (3) which is abnormally operated to the hydraulic pressure source (9);
Disposed between the rear wheel actuator (4) and the hydraulic pump (7) and between the rear wheel actuator (4) and the hydraulic source (9) to control the direction of supply of hydraulic oil to the rear wheel actuator (4). Directional control valve 53; And
Disposed between the hydraulic pump 7 and the directional control safety valve 51 or between the hydraulic pump 7 and the directional control valve 53 and caught by the front wheel 11 or the rear wheel 12. Active roll stabilization, characterized in that consisting of; front and rear wheel proportional control valves (55, 56) to adjust the amount of hydraulic oil supplied to the front or rear wheel actuators (3, 4) in proportion to running resistance Device. 제1 항에 있어서,
상기 밸브유닛(5)은 하나의 블록 안에 설치되어 있는 것을 특징으로 하는 능동롤 안정화장치.The method according to claim 1,
The valve unit (5) is an active roll stabilization device, characterized in that installed in one block. 제1 항에 있어서,
상기 전륜측 액츄에이터(3), 상기 방향제어 안전밸브(51), 및 상기 전륜측 비례제어밸브(55)는 제1 블록(21)에, 상기 후륜측 액츄에이터(4), 상기 방향제어밸브(53), 및 상기 후륜측 비례제어밸브(56)는 제2 블록(22)에 각각 배치되는 것을 특징으로 하는 능동롤 안정화장치.The method according to claim 1,
The front wheel side actuator 3, the direction control safety valve 51, and the front wheel side proportional control valve 55 are connected to the first block 21, the rear wheel side actuator 4, and the direction control valve 53. And the rear wheel proportional control valve 56 is disposed in the second block 22, respectively.
KR1020100091848A 2010-09-17 2010-09-17 Active roll stabilization system KR20120029791A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101648469B1 (en) * 2015-12-29 2016-08-16 주식회사 인팩 Hydraulic system of actuator for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101648469B1 (en) * 2015-12-29 2016-08-16 주식회사 인팩 Hydraulic system of actuator for vehicle

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