KR100270766B1 - Flow control arrangement of pressure sensor - Google Patents

Flow control arrangement of pressure sensor Download PDF

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Publication number
KR100270766B1
KR100270766B1 KR1019960079915A KR19960079915A KR100270766B1 KR 100270766 B1 KR100270766 B1 KR 100270766B1 KR 1019960079915 A KR1019960079915 A KR 1019960079915A KR 19960079915 A KR19960079915 A KR 19960079915A KR 100270766 B1 KR100270766 B1 KR 100270766B1
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KR
South Korea
Prior art keywords
pump
flow
ecu
pressure
oil pressure
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KR1019960079915A
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Korean (ko)
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KR19980060553A (en
Inventor
조문석
Original Assignee
밍루
주식회사만도
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Priority to KR1019960079915A priority Critical patent/KR100270766B1/en
Publication of KR19980060553A publication Critical patent/KR19980060553A/en
Application granted granted Critical
Publication of KR100270766B1 publication Critical patent/KR100270766B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-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
    • B62D5/083—Rotary valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065—Power-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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/306—Pressure sensors

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

PURPOSE: A flow controller using pressure sensor provides the rotary power of the maximum output by controlling the inflow rate of a sensitivity controller. CONSTITUTION: A main passage(2) connected to a pump(3), a control valve(5) and a sensitivity controller(4) is mounted in a rotary valve(1) for steering. The sensitivity controller(4) controls a flow supplied from the pump(3), thereby improving the characteristic of steering. A pressure gauge(6) connected with an ECU(electronic control unit) is mounted between the rotary valve(1) and the pump(3). When the pressure gauge(6) senses the oil pressure supplied through the main passage(2) from the pump(3) and sends a sensed valve to the ECU, the ECU controls a flow which flows in the sensitivity controller(4) in comparison with the relation of the sensed value and a rotary power. Therefore, the ECU operates a steering system in a proper and smooth condition by the controlled oil pressure. Thus, the occurrence of a noise is eliminated greatly by a smooth action of the oil pressure and the optimum output is obtained by a proper control of the oil pressure. The drive of an electronic control type steering system is smoothed by the optimum output.

Description

압력센서를 이용한 유량제어장치Flow control device using pressure sensor

제1도는 종래 발명의 유압 흐름도.1 is a hydraulic flow chart of the conventional invention.

제2도는 본 발명의 구조를 나타내는 구조도.2 is a structural diagram showing a structure of the present invention.

제3도는 본 발명의 작용 상태를 나타내는 작용상태도.3 is an operating state diagram showing an operating state of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 로터리 밸브 2 : 메인유로1: Rotary Valve 2: Main Euro

3 : 펌프 4 : 감도 제어부3: pump 4: sensitivity control part

5 : 조절밸브 6 : 압력계5: control valve 6: pressure gauge

ECU : 콘트롤러ECU: Controller

본 발명은 차량의 방향전환을 위하여 설치되는 전자 제어식 조향시스템에 있어서, 상기 조향시스템을 제어하는 유량제어장치에 압력센서를 연결 설치하고 이 압력센서에서 회전력에 대한 입력값에 따라 감도 제어부의 유량 유입을 조절하면서 최대 출력의 회전력을 얻을 수 있도록한 압력센서를 이용한 유량제어장치에 관한 것이다.The present invention provides an electronically controlled steering system installed to change the direction of a vehicle, wherein a pressure sensor is connected to a flow control device for controlling the steering system, and the flow rate of the sensitivity controller flows in accordance with the input value for the rotational force in the pressure sensor. It relates to a flow control device using a pressure sensor to obtain a maximum output torque while adjusting the.

종래의 전자 제어식 조향시스템용 유량제어장치는, 제1도에서와 같이 로터리 밸브(1)에 조향을 위하여 사용되는 메인유로(2)와 감도 제어부(4)를 설치하고, 이 감도 제어부(4)로써 공급되는 유량을 조절하면서 조향특성을 개선하도록 구성되어 있었다.In the conventional flow control apparatus for electronically controlled steering system, as shown in FIG. 1, the main flow path 2 and the sensitivity control part 4 used for steering are provided in the rotary valve 1, and this sensitivity control part 4 is carried out. It was configured to improve the steering characteristics while controlling the flow rate.

그러나, 상기와 같은 종래의 전자 제어식 조향시스템용 유량제어장치는 유로를 형성하는 홈이 8개 형성되어 있었기 때문에 상기 유로를 통하여 이동하는 유압에 제한을 가하게 되는 결점이 발생되고 있었으며, 상기의 결점으로 인하여 상기 유압라인에 노이즈가 발생되어 조향감에 저하되면서 원활한 조향이 이루어지지 못하게 되는 점 등의 문제점이 있었다.However, in the conventional flow control apparatus for an electronically controlled steering system as described above, since eight grooves are formed to form a flow path, a drawback of restricting the hydraulic pressure moving through the flow path has been generated. Due to the noise generated in the hydraulic line is reduced in the steering feeling, there was a problem such that the smooth steering is not achieved.

본 발명은 상기와 같은 종래의 제반 문제점을 감안하여 안출한 것으로, 전자 제어식 조향시스템에 있어서, 상기 조향시스템을 제어하는 유량제어장치에 압력센서를 연결 설치하고 이 압력센서에서 회전력에 대한 입력값에 따라 감도 제어부의 유량 유입을 조절하면서 최대 출력의 회전력을 얻을 수 있도록한 압력센서를 이용한 유량제어장치를 제공하려는 것인바, 이를 이하에서 첨부한 도면과 실시예에 의거하여 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned conventional problems, and in an electronically controlled steering system, a pressure sensor is connected to a flow rate control device for controlling the steering system, and the pressure value is input to the rotational force in the pressure sensor. According to the present invention to provide a flow control device using a pressure sensor to obtain a rotational force of the maximum output while adjusting the flow inflow of the sensitivity control unit, which will be described in detail based on the accompanying drawings and examples below.

[실시예]EXAMPLE

본 발명의 실시예는 제2도 및 제3도에서와 같이 로터리 밸브(1)에, 조향을 위하여 사용되는 펌프(3)에 연결되는 메인유로(2)와 조절밸브(5) 및 감도 제어부(4)를 설치하고, 이 감도 제어부(4)로써 공급되는 유량을 조절하면서 조향특성을 개선하도록 구성된 것에 있어서, 상기 로터리 밸브(1)와 펌프(3) 사이에 압력계(6)를 설치하고 이 압력계(6)에는 콘트롤러(ECU)를 연결, 설치하며 상기 압력계에서 감지된 유량 및 이의 압력, 속도에 따라 출력되는 회전력을 조절할 수 있도록 구성된 것이다.Embodiments of the invention are shown in FIGS. 2 and 3 as shown in FIGS. 2 and 3, the main flow passage 2 and the control valve 5 and the sensitivity control unit connected to the rotary valve 1 and to the pump 3 used for steering. 4), and the pressure gauge 6 is provided between the rotary valve 1 and the pump 3, in order to improve steering characteristics while adjusting the flow rate supplied to the sensitivity control unit 4. (6) is connected to and installed a controller (ECU) and configured to adjust the rotational force output according to the flow rate and pressure, speed and detected by the pressure gauge.

이상과 같이 구성된 본 발명의 실시예는 상기 펌프(3)로부터 유압이 공급되면, 공급된 유압이 제3도에서와 같이 상기 메인유로(2)를 통과하면서 로터리 밸브(1)에서 유압을 분산 공급하게 되고 이 분산 공급되는 유압은 상기 로터리 밸브(1)의 일방에 설치된 감도 제어부(4)를 통해 조향시스템을 구동시키게 되는 것으로 상기 감도 제어부(4)를 통과하여 공급되는 유압은 이 감도 제어부(4)의 감지에 따라 적정한 상태로 조절되면서 공급작용이 이루어지게 되는 것이다.According to the embodiment of the present invention configured as described above, when the hydraulic pressure is supplied from the pump 3, the hydraulic pressure supplied is distributed and supplied from the rotary valve 1 while passing through the main passage 2 as shown in FIG. 3. The distributed hydraulic pressure is to drive the steering system through the sensitivity control unit 4 installed on one of the rotary valves 1. The hydraulic pressure supplied through the sensitivity control unit 4 is the sensitivity control unit 4. In accordance with the detection of) will be adjusted to the appropriate state is to supply.

상기와 같이 작동하는 본 발명의 실시예는 상기 메인유로(2)를 따라 공급되는 유압을 압력계(6)에서 감지하고 이 감지된 입력값을 콘트롤러(ECU)로 인가시키게 되면, 이 콘트롤러(ECU)에서는 상기 입력된 입력값과 회전력의 관계를 비교하며 이 비교치에 따라 상기 감도 제어부(4)로 유입되는 유량을 적정하게 조절하게 되고 이 조절된 유압에 의하여 상기 조향시스템을 적정하고 원활한 상태로 작동시키게 되는 것이다.According to the embodiment of the present invention operating as described above, when the hydraulic pressure supplied along the main flow passage 2 is sensed by the pressure gauge 6 and the detected input value is applied to the controller ECU, the controller ECU Compares the relationship between the input value and the rotational force, and properly adjusts the flow rate flowing into the sensitivity controller 4 according to the comparison value, and operates the steering system appropriately and smoothly by the adjusted hydraulic pressure. It is to be made.

이상과 같은 본 발명은 차량의 방향전환을 위하여 설치되는 전자 제어식 조향시스템을 제어하는 유량제어장치에 압력센서를 연결 설치하고 이 압력센서에서 회전력에 대한 입력값에 따라 감도 제어부의 유량 유입을 조절하면서 최대 출력의 회전력을 얻을 수 있도록 함에 따라 상기 유압의 흐름을 원활하게 할 수 있고 이 원활한 유압의 작용으로 노이즈의 발생을 현격하계 저감시키게 되며 상기 유압의 적정한 조절을 통해서 최적의 출력을 얻을 수 있게 되고, 이 최적의 출력으로 전자 제어식 조향시스템의 구동을 원활하면서 확실하게 할 수 있게 되는 점 등의 특징을 지닌 것이다.The present invention as described above is connected to the pressure sensor installed in the flow control device for controlling the electronically controlled steering system installed to change the direction of the vehicle and while adjusting the flow inflow of the sensitivity control unit according to the input value for the rotational force in the pressure sensor It is possible to smoothly flow the hydraulic pressure by obtaining the rotational force of the maximum output and to reduce the generation of noise significantly by the action of the smooth hydraulic pressure and to obtain the optimum output through the appropriate adjustment of the hydraulic pressure In addition, this optimum output enables smooth and reliable operation of the electronically controlled steering system.

Claims (1)

로터리 밸브(1)에, 조향을 위하여 사용되는 펌프(3)에 연결되는 메인유로(2)와 조절밸브(5) 및 감도 제어부(4)를 설치하고, 이 감도 제어부(4)로써 공급되는 유량을 조절하면서 조향특성을 개선하도록 구성된 것에 있어서, 상기 로터리 밸브(1)와 펌프(3) 사이에 압력계(6)를 설치하고 이 압력계(6)에는 콘트롤러(ECU)를 연결, 설치하며 상기 압력계에서 감지된 유량 및 이의 압력, 속도에 따라 출력되는 회전력을 조절할 수 있도록 구성됨을 특징으로 하는 압력센서를 이용한 유량제어장치.In the rotary valve 1, a main flow path 2, a control valve 5, and a sensitivity control unit 4 connected to the pump 3 used for steering are provided, and the flow rate supplied to the sensitivity control unit 4 is provided. In this configuration, the pressure gauge 6 is provided between the rotary valve 1 and the pump 3 and the controller ECU is connected to and installed in the pressure gauge. Flow control device using a pressure sensor, characterized in that configured to adjust the output torque according to the detected flow rate and its pressure, speed.
KR1019960079915A 1996-12-31 1996-12-31 Flow control arrangement of pressure sensor KR100270766B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960079915A KR100270766B1 (en) 1996-12-31 1996-12-31 Flow control arrangement of pressure sensor

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Application Number Priority Date Filing Date Title
KR1019960079915A KR100270766B1 (en) 1996-12-31 1996-12-31 Flow control arrangement of pressure sensor

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KR19980060553A KR19980060553A (en) 1998-10-07
KR100270766B1 true KR100270766B1 (en) 2000-11-01

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