KR100247339B1 - A control valve of magnetic power steering system - Google Patents

A control valve of magnetic power steering system Download PDF

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Publication number
KR100247339B1
KR100247339B1 KR1019960079914A KR19960079914A KR100247339B1 KR 100247339 B1 KR100247339 B1 KR 100247339B1 KR 1019960079914 A KR1019960079914 A KR 1019960079914A KR 19960079914 A KR19960079914 A KR 19960079914A KR 100247339 B1 KR100247339 B1 KR 100247339B1
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KR
South Korea
Prior art keywords
valve
steering system
flow path
pressure
control valve
Prior art date
Application number
KR1019960079914A
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Korean (ko)
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KR19980060552A (en
Inventor
조문석
김성주
김성규
Original Assignee
오상수
만도기계주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 오상수, 만도기계주식회사 filed Critical 오상수
Priority to KR1019960079914A priority Critical patent/KR100247339B1/en
Publication of KR19980060552A publication Critical patent/KR19980060552A/en
Application granted granted Critical
Publication of KR100247339B1 publication Critical patent/KR100247339B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/087Sliding spool valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist

Abstract

본 발명은 차량의 방향전환을 위하여 설치되는 전자 제어식 조향시스템에 있어서, 상기 조향시스템을 제어하는 유압회로의 유로구조를 개선하고 이 개선된 유로를 가진 밸브를 이용하여 압력을 적정한 상태로 조절할 수 있도록 한 반력 전자식 조향시스템의 콘트롤 밸브에 관한 것이다.The present invention provides an electronically controlled steering system which is installed to change the direction of a vehicle, so that the flow path structure of the hydraulic circuit controlling the steering system can be improved and the pressure can be properly adjusted using the valve having the improved flow path. A control valve of a reaction force electronic steering system.

본 발명은 전자 제어식 조향시스템의 유압 제어수단에 유압을 제어하고 콘트롤하는 밸브를 설치함에 있어서, 반력실(1)과 연결되는 밸브본체(2)의 스풀(3)내에 유로의 단차(a)와 내부 유로(401)를 가지는 밸브(4)를 스프링(5)으로 탄력설치하고 이 밸브(4)의 일방에는 이를 작동시키는 솔레노이드(6)를 설치하여 구성한 것이다.The present invention provides a valve for controlling and controlling the hydraulic pressure in the hydraulic control means of the electronically controlled steering system, the step (a) of the flow path in the spool (3) of the valve body (2) connected to the reaction chamber (1) and The valve 4 having the internal flow path 401 is elastically installed by the spring 5, and one side of the valve 4 is provided by installing a solenoid 6 for operating the valve.

Description

반력 전자식 조향시스템의 콘트롤 밸브Control valve of reaction force electronic steering system

제1도는 종래 발명의 밸브 단면도.1 is a cross-sectional view of a valve of the prior art.

제2도는 본 발명의 밸브구조를 나타내는 단면도.2 is a cross-sectional view showing a valve structure of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 반력실 2 : 밸브본체1: reaction chamber 2: valve body

3 : 스풀 4 : 밸브3: spool 4: valve

5 : 스프링 6 : 솔레노이드5: spring 6: solenoid

a : 유로의 단차a: step of euro

본 발명은 차량의 방향전환을 위하여 설치되는 전자 제어식 조향시스템에 있어서, 상기 조향시스템을 제어하는 유압회로의 유로구조를 개선하고 이 개선된 유로를 가진 밸브를 이용하여 압력을 적정한 상태로 조절할 수 있도록 한 반력 전자식 조향시스템의 콘트롤 밸브에 관한 것이다.The present invention provides an electronically controlled steering system which is installed to change the direction of a vehicle, so that the flow path structure of the hydraulic circuit controlling the steering system can be improved and the pressure can be properly adjusted using the valve having the improved flow path. A reaction valve relates to a control valve of an electronic steering system.

종래, 전자 제어식 조향시스템의 유입 콘트롤용 밸브는, 도1에서와 같이 밸브본체(21)에 공급측과 반력실측 배출측의 유로(22)(23)(24)를 각각 형성하고 밸브본체(21)의 일측에는 조절스크류(25)를 스프링(26)으로 탄력설치하며 상기 밸브본체(21)의 중앙부에는 핀이 설치되는 핀홀(27)을 형성하여 압력을 조절하도록 구성되어 있었다.Conventionally, the inflow control valve of the electronically controlled steering system, as shown in Fig. 1, forms the flow passages 22, 23, 24 on the supply side and the discharge side of the reaction chamber side, respectively, in the valve body 21, and the valve body 21. On one side of the adjustment screw 25 is installed elastically with a spring 26 and the central portion of the valve body 21 was configured to adjust the pressure by forming a pin hole 27 is a pin is installed.

그러나, 상기와 같은 종래의 유압 콘트롤용 밸브는, 유로가 형성된 밸브본체(21)의 중앙부에 핀이 미끄럼 운동을 하는 핀홀을 형성하고 상기 핀의 단면적 만큼 압력편차를 갖도록 하므로써 스풀(Spool)내의 압력을 보상하고 반력실의 압력을 조정하도록 되어 있었기 때문에 상기 밸브의 구조가 복잡하게 되어 있었으며, 또, 상기 핀홀과 핀의 가공정도에 따라 상기 압력의 보상 및 조절상태가 달라질 수 있으므로 상기 핀홀 등의 가공을 정밀하게 해야 하는 불편이 있었고, 상기 압력의 보상 및 조절이 정확하게 이루어지지 못하여 유압의 제어가 확실하게 되지 못하는 점 등의 문제점이 있었다.However, in the conventional hydraulic control valve as described above, the pressure in the spool is formed by forming a pinhole in which the pin slides at the center of the valve body 21 in which the flow path is formed and having a pressure deviation corresponding to the cross-sectional area of the pin. To compensate the pressure and adjust the pressure in the reaction chamber, and the structure of the valve is complicated, and the compensation and adjustment state of the pressure may vary according to the degree of processing of the pinhole and the pin, so that the processing of the pinhole, etc. There was a inconvenience to be precise, there was a problem such that the compensation and adjustment of the pressure is not made accurately, the control of the hydraulic pressure is not sure.

본 발명은 상기와 같은 종래의 제반 문제점을 감안하여 안출한 것으로, 조향시스템을 제어하는 유압 제어수단의 콘트롤 밸브의 구조를, 스풀내에 유로의 단차가 형성되도록 개선하고 이 개선된 밸브의 유로 단차를 이용하여 압력의 조절 및 보상을 도모할 수 있도록 구성한 것인바, 이를 이하에서 첨부한 도면과 실시예에 의거하여 상세히 설명하면 다음과 같다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and improves the structure of the control valve of the hydraulic control means for controlling the steering system so that a step of the flow path is formed in the spool and improves the flow path step of the improved valve. It is configured to enable the adjustment and compensation of pressure by using the bar, which will be described in detail based on the accompanying drawings and examples below.

본 발명의 실시예는, 전자 제어식 조향시스템의 유압 제어수단에 유압을 제어하고 콘트롤하는 밸브를 설치함에 있어서, 반력실(1)과 연결되는 밸브본체(2)의 스풀(3)내에 유로의 단차(a)와 내부 유로(401)를 가지는 밸브(4)를 스프링(5)으로 탄력설치하고 이 밸브(4)의 일방에는 이를 작동시키는 솔레노이드(6)를 설치하여 구성한 것이다.Embodiment of the present invention, in the installation of a valve for controlling and controlling the hydraulic pressure in the hydraulic control means of the electronically controlled steering system, the step of the flow path in the spool (3) of the valve body (2) connected to the reaction chamber (1) The valve 4 having the (a) and the inner flow passage 401 is elastically installed by the spring 5, and one side of the valve 4 is provided by installing a solenoid 6 for operating the valve.

이상과 같이 구성된 본 발명의 실시예는, 유압 제어수단의 펌프로부터 유압이 공급되면, 공급된 유압이 도2에서와 같이 반력실(1)을 통하여 밸브본체(2)에 전달되는데, 상기 밸브본체(2)로 전달되는 압력을 상기 스풀(3)내의 밸브(4)에 형성된 유로의 단차(a)와 내부 유로(401)에 의하여 조절하도록 하고 상기 밸브(4)는 솔레노이드(6)에 의하여 스프링(5)의 탄력을 받으면서 작동하도록 하며, 상기 유로의 단차(a)와 내부 유로(401), 솔레노이드(6)의 작동으로 상기 유압 제어수단의 압력이 증가할 경우, 반력실(1)측의 유로 개도(開道)면적을 증가시키게 되고 이 유로 개도면적을 증가시킴에 따라 상기 증가되는 압력을 조절할 수 있게 되며, 이에따라 스풀내의 압력을 보상하면서 조절하게 되는 것이다.In the embodiment of the present invention configured as described above, when the hydraulic pressure is supplied from the pump of the hydraulic control means, the supplied hydraulic pressure is transmitted to the valve body 2 through the reaction chamber 1 as shown in Figure 2, the valve body (2) the pressure transmitted to the step (a) and the internal flow path 401 of the flow path formed in the valve (4) in the spool (3) and the valve (4) is a spring by the solenoid (6) When the pressure of the hydraulic control means is increased by the operation of the step (a) of the flow path and the operation of the internal flow path (401) and the solenoid (6), the reaction chamber (1) side As the flow path opening area is increased and the flow path opening area is increased, the increased pressure can be adjusted, and accordingly, the pressure in the spool is compensated for.

이상과 같은 본 발명은, 상기 조향시스템을 제어하는 유압 제어수단의 콘트롤 밸브의 구조를, 스풀내에 유로의 단차가 형성되도록 개선하고 이 개선된 밸브의 유로 단차와 내부 유로를 이용하여 증가되는 압력의 조절을 조절하며 또, 상기 스풀내의 압력을 보상할 수 있도록 하므로써 상기 유압 제어수단의 동작을 원활하게 할 수 있고, 이 원활한 제어수단의 동작으로 조향시스템의 콘트롤 및 조향을 확실하게 할 수 있으며, 상기 압력을 조절 및 보상하는 콘트롤용 밸브의 구조를 간단히 하면서도 그 동작을 확실하게 할 수 있으므로 전체적 시스템의 구성을 간단히 할 수 있고 상기 밸브의 동작이 항시 정확히 이루어지게 되는 점 등의 특징을 지닌 것이다.The present invention as described above improves the structure of the control valve of the hydraulic control means for controlling the steering system, so that a step of the flow path is formed in the spool and that the pressure of the improved valve is increased by using the flow path step and the internal flow path. By adjusting the adjustment and compensating for the pressure in the spool, the operation of the hydraulic control means can be smoothed, and the operation of the smooth control means can ensure the control and steering of the steering system. Since the structure of the control valve for regulating and compensating pressure can be simplified and the operation can be assured, the configuration of the overall system can be simplified and the operation of the valve is always accurate.

Claims (1)

전자 제어식 조향시스템의 유압 제어수단에 유압을 제어하는 콘트롤 밸브를 설치하되, 반력실(1)과 연결되는 밸브본체(2)의 스풀(3)내에 밸브(4)를 내장한 후, 전방의 솔레노이드(6)에 의해 전진하고, 그 후방의 스프링(5)에 의해 복귀하도록 한 것에 있어서, 스풀(3)내의 일측에 단차(a)를 형성하고, 밸브(4)속으로 유로(401)를 형성하여 압력차이를 보상할 수 있도록 하여서 된 것을 특징으로 하는 반력 전자식 조향시스템의 콘트롤 밸브.The control valve for controlling the hydraulic pressure is installed in the hydraulic control means of the electronically controlled steering system, but after the valve 4 is built into the spool 3 of the valve body 2 connected to the reaction chamber 1, the solenoid in front In step (6), the step (a) is formed on one side in the spool (3), and the flow path (401) is formed in the valve (4) in order to return by the spring (5) behind it. Control valve of the reaction force electronic steering system, characterized in that to compensate for the pressure difference.
KR1019960079914A 1996-12-31 1996-12-31 A control valve of magnetic power steering system KR100247339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960079914A KR100247339B1 (en) 1996-12-31 1996-12-31 A control valve of magnetic power steering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960079914A KR100247339B1 (en) 1996-12-31 1996-12-31 A control valve of magnetic power steering system

Publications (2)

Publication Number Publication Date
KR19980060552A KR19980060552A (en) 1998-10-07
KR100247339B1 true KR100247339B1 (en) 2000-04-01

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KR1019960079914A KR100247339B1 (en) 1996-12-31 1996-12-31 A control valve of magnetic power steering system

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