KR19980027966A - Vehicle braking system - Google Patents

Vehicle braking system Download PDF

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Publication number
KR19980027966A
KR19980027966A KR1019960046892A KR19960046892A KR19980027966A KR 19980027966 A KR19980027966 A KR 19980027966A KR 1019960046892 A KR1019960046892 A KR 1019960046892A KR 19960046892 A KR19960046892 A KR 19960046892A KR 19980027966 A KR19980027966 A KR 19980027966A
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KR
South Korea
Prior art keywords
vehicle
coupled
rotation
frame
arm
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KR1019960046892A
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Korean (ko)
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KR100188522B1 (en
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김태운
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김영석
아시아자동차공업 주식회사
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Priority to KR1019960046892A priority Critical patent/KR100188522B1/en
Publication of KR19980027966A publication Critical patent/KR19980027966A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1837Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
    • B60T8/1856Arrangements for detecting suspension spring load
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/001Suspension arms, e.g. constructional features
    • 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
    • B60G2204/43Fittings, brackets or knuckles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60Load
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00Special features of vehicle units
    • B60Y2400/30Sensors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

본 발명은 차량용 제동장치에 관한 것으로서, 독립현가장치가 장착된 차량에서는 하중변화를 감지하는데 어려움이 있어서 종래에는 제동력분배장치인 하중감지밸브가 사용되지 못했다는 문제점을 해결하기 위하여, 상부브라켓(50)에서의 어퍼암(62) 회전을 감지하도록 차량 프레임(10)에 배치되는 회전감지센서(70)와, 상기 회전감지센서(70)의 회전감지상태가 입력되는 전자제어유닛(80)과, 상기 전자제어유닛(80)과 연결되고 차량의 프레임(10) 내측면에 장착되는 스테핑모터(90)와, 상기 스테핑모터(90)의 회전단에 결합된 회전암(92)과, 상기 회전암(92)에 메인스프링(36)으로 결합되고 상기 프레임(10) 내측면에 결합되는 하중감지밸브(30)로 구성된 제동력배분장치를 포함하는 차량용 제동장치를 제공한다.The present invention relates to a braking device for a vehicle, and in order to solve a problem that a load sensing valve, which is a braking force distribution device, has not been conventionally used in a vehicle equipped with an independent suspension device, an upper bracket (50) A rotation sensor 70 disposed on the vehicle frame 10 to detect rotation of the upper arm 62 in the upper arm, an electronic control unit 80 to which the rotation detection state of the rotation sensor 70 is input; A stepping motor 90 connected to the electronic control unit 80 and mounted on an inner surface of the frame 10 of the vehicle, a rotation arm 92 coupled to a rotational end of the stepping motor 90, and the rotation arm It provides a braking device for a vehicle including a braking force distribution device consisting of a load sensing valve 30 is coupled to the main spring 36 to the 92 and coupled to the inner surface of the frame 10.

Description

차량용 제동장치Vehicle braking system

본 발명은 차량용 제동장치에 관한 것으로서, 특히 독립현가장치가 구비된 차량에서 하중감지밸브(로드센싱 프로포셔닝밸브 : LOAD SENSING PROPORTIONING VALVE)를 사용하여 각 바퀴에서의 제동력 배분이 이루어질 수 있도록 된 차량용 제동장치에 관한 것이다.The present invention relates to a braking device for a vehicle, and in particular, a vehicle that is capable of distributing braking force at each wheel by using a load sensing valve (LOAD SENSING PROPORTIONING VALVE) in a vehicle equipped with an independent suspension device. It relates to a braking device.

일반적으로, 차량에는 제동장치가 구비되어 주행중의 차량을 감속 또는 정지시킴과 동시에 주차상태를 유지할 수 있게 된다.In general, a vehicle is provided with a braking device so as to decelerate or stop a vehicle while driving and maintain a parking state.

또한, 차량의 제동장치와 함께 하중감지밸브가 사용되는데, 상기 하중감지밸브는 유압에 의해 바퀴의 제동력을 달리하도록 되어 있다.In addition, a load sensing valve is used together with the braking device of the vehicle, and the load sensing valve is adapted to vary the braking force of the wheel by hydraulic pressure.

즉, 상기 하중감지밸브는 차량에 부가되는 하중을 파악하여 각 바퀴마다 제동력의 크기를 다르게 줌으로써, 전체적인 제동력 평형을 이루어 안전한 제동을 얻을 수 있도록 한다.That is, the load sensing valve grasps the load applied to the vehicle and gives a different amount of braking force for each wheel, thereby achieving an overall braking force balance to obtain safe braking.

한편, 차량의 현가장치는 크게 차축식 현가장치와 독립현가장치로 나눌 수 있는데, 상기 차축식 현가장치는 일체로 된 차축에 양바퀴가 설치되고 다시 상기 차축이 스프링을 거쳐 차체에 설치된 것이다.On the other hand, the suspension of the vehicle can be largely divided into an axle suspension and an independent suspension, the axle suspension is installed on both wheels on the integrated axle and the axle is installed on the body through the spring again.

그리고, 상기 독립현가장치는 차축을 분할하여 양쪽바퀴가 서로 관계없이 움직이게 독립시킨 것이다.The independent suspension device divides the axle so that both wheels move independently of each other.

도 1은 차축식 현가장치에 설치된 종래의 차량용 제동장치를 도시한 것으로서, 차량 프레임(10)에는 판스프링(12)이 양 사이드 하단에 설치되어 있고, 상기 판스프링(12)에는 일체차축(14)이 결합되어 있다.FIG. 1 illustrates a conventional vehicle braking device installed in an axle suspension device. A vehicle frame 10 includes leaf springs 12 disposed at lower sides of both sides, and the leaf springs 12 have an integrated axle 14. ) Is combined.

한편, 상기 프레임(10) 측면에는 하중감지밸브(30)가 장착되어 있는데, 도 2에서 도시된 바와 같이 상기 하중감지밸브(30)는 일측에 지지대(31)가 형성되고 상기 지지대(31)와 조정스프링(32)으로 연결되는 작동레버(33)가 타측에 힌지결합되어 있으며, 상기 하중감지밸브(30) 상측면에 유압주입구(34) 및 유압배출구(35)가 형성되어 있고, 상기 작동레버(33)의 상단에 결합된 메인스프링(36)은 하부 상기 판스프링(12)에 결합된 케이싱(37)에 연결되어 있다.On the other hand, the load sensing valve 30 is mounted on the side of the frame 10, as shown in Figure 2, the load sensing valve 30 has a support 31 is formed on one side and the support 31 and The operating lever 33 connected to the adjustment spring 32 is hinged to the other side, the hydraulic inlet 34 and the hydraulic outlet 35 is formed on the upper side of the load sensing valve 30, the operating lever The main spring 36 coupled to the upper end of the 33 is connected to the casing 37 coupled to the lower leaf spring 12.

도 3은 종래 차량용 제동장치의 유압로를 나타낸 것으로서, 운전자가 제동할 경우에 조작하는 브레이크(40)가 배치되고, 상기 브레이크(40)의 작동에 따라 마스터실린더(42)에서 유압이 발생된다.3 illustrates a hydraulic path of a conventional vehicle braking device, in which a brake 40 is operated when a driver brakes, and hydraulic pressure is generated in the master cylinder 42 according to the operation of the brake 40.

발생된 유압은 상기 유압로(44)를 통해 상기 마스터실린더(42)에서 하중감지밸브의 유압주입구(34)로 전달되고, 상기 하중감지밸브(30)에서 하중변화에 따라 달라진 유압이 유압배출구(35)를 통해 브레이크작동부(46)로 전달된다.The generated hydraulic pressure is transmitted from the master cylinder 42 to the hydraulic inlet 34 of the load sensing valve through the hydraulic passage 44, and the hydraulic pressure changed according to the load change in the load sensing valve 30 is a hydraulic outlet ( It is transmitted to the brake operating part 46 through 35.

상술한 종래의 차량용 제동장치는 운전자가 제동을 목적으로 브레이크(40)를 작동시키게 되고, 상기 브레이크(40) 작동에 의해 마스터실린더(42)에서 발생된 유압이 하중감지밸브(30)로 전달된다.In the above-described conventional braking device for a vehicle, a driver operates the brake 40 for braking purposes, and the hydraulic pressure generated in the master cylinder 42 is transmitted to the load sensing valve 30 by the brake 40. .

한편, 차체에 하중이 가해지게 되면 일체차축(14)이 상승하고, 이때 상기 일체차축(14)과 결합된 판스프링(12) 또한 상승하게 된다.Meanwhile, when a load is applied to the vehicle body, the integrated axle 14 is raised, and the leaf spring 12 coupled with the integrated axle 14 is also raised.

그리고, 상기 판스프링(12)에 결합된 케이싱(37)이 상승됨에 따라 상기 케이싱(37)과 연결된 메인스프링(36)에 의해 하중감지밸브의 작동레버(33)가 작동된다.Then, as the casing 37 coupled to the leaf spring 12 is lifted, the operation lever 33 of the load sensing valve is operated by the main spring 36 connected to the casing 37.

상기 작동레버(33)가 작동됨에 따라 상기 하중감지밸브(30)는 유압주입구(34)에 전달된 유압의 세기를 하중의 크기에 따라 조절하고, 그리고 유압배출구(35)를 통해 브레이크작동부(46)에 유압이 전달됨으로써 차량의 제동이 이루어지게 된다.As the operation lever 33 is operated, the load detection valve 30 adjusts the strength of the hydraulic pressure transmitted to the hydraulic inlet 34 according to the magnitude of the load, and the brake operating unit (3) through the hydraulic outlet 35. The hydraulic pressure is transmitted to 46 to brake the vehicle.

그러나, 종래의 차량용 제동장치는 하중감지밸브(30)를 독립현가장치에 설치하여 하중변화에 따라 제동력분배를 이루고자 할 경우에, 양쪽 바퀴가 독립적으로 움직이기 때문에 그 때의 하중변화를 파악하기가 어려워 상기 하중감지밸브(30)가 사용되지 못했었다는 문제점이 있었다.However, in the conventional vehicle braking device, when the load sensing valve 30 is installed in the independent suspension device to achieve the braking force distribution according to the load change, both wheels move independently, so it is difficult to grasp the load change at that time. It was difficult to have a problem that the load detection valve 30 was not used.

본 발명은 상기와 같은 문제점을 해결하고자 안츨된 것으로서, 본 고안의 목적은 독립현가장치에서 제동력을 분배할 수 있도록 된 차량용 제동장치를 제공하는 데 있다.The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle braking device capable of distributing braking force in an independent suspension device.

도 1은 종래 차축식 현가장치에서 사용되는 차량용 제동장치를 도시한 사시도이고,1 is a perspective view showing a vehicle braking device used in a conventional axle suspension,

도 2는 도 1의 주요부분에 대해 도시한 확대도이며,FIG. 2 is an enlarged view of the main part of FIG. 1;

도 3은 종래 차량용 제동장치의 유압로를 도시한 개략도이고,Figure 3 is a schematic diagram showing a hydraulic path of a conventional vehicle braking device,

도 4는 본 발명에 따른 차량용 제동장치를 도시한 사시도이며,4 is a perspective view showing a braking device for a vehicle according to the present invention;

도 5는 도 4의 주요부분에 대해 도시한 확대도이고,5 is an enlarged view showing the main part of FIG. 4;

도 6은 본 발명에 따른 차량용 제동장치의 작동실시예를 도시한 부분사시도이다.Figure 6 is a partial perspective view showing an embodiment of the operation of the vehicle braking device according to the present invention.

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

30 : 하중감지밸브70 : 회전감지센서30: load detection valve 70: rotation detection sensor

80 : 전자제어유닛(ECU)90 : 스테핑모터80: electronic control unit (ECU) 90: stepping motor

92 : 회전암92: rotary arm

상기와 같은 목적을 구현하고자 본 발명은 상부브라켓에서의 어퍼암 회전을 감지하도록 차량 프레임에 배치되는 회전감지센서와, 상기 회전감지센서의 회전감지상태가 입력되는 전자제어유닛과, 상기 전자제어유닛과 연결되고 차량의 프레임 내측면에 장착되는 스테핑모터와, 상기 스테핑모터의 회전단에 결합된 회전암과, 상기 회전암에 메인스프링으로 결합되고 상기 프레임 내측면에 결합되는 하중감지밸브로 구성된 제동력배분장치를 포함하는 차량용 제동장치를 제공한다.To achieve the above object, the present invention provides a rotation detection sensor disposed on the vehicle frame to detect the upper arm rotation in the upper bracket, an electronic control unit to input the rotation detection state of the rotation detection sensor, and the electronic control unit And a braking force consisting of a stepping motor connected to the frame inner side of the vehicle, a rotary arm coupled to the rotary end of the stepping motor, and a load sensing valve coupled to the rotary arm by a main spring and coupled to the inner surface of the frame. Provided is a vehicle braking device including a distribution device.

상기와 같이 구성된 본 발명에 의한 차량용 제동장치는 독립현가장치에서도 하중감지밸브를 사용할 수 있게 된다.The braking device for a vehicle according to the present invention configured as described above can use a load sensing valve even in an independent suspension device.

이하, 본 발명의 실시예를 첨부된 도면을 참조하여 설명하며, 도면에서 종래의 구성과 동일한 부분은 동일한 명칭 및 동일한 부호를 부여하고 중복되는 설명은 생략한다.DETAILED DESCRIPTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, in which the same parts as in the prior art are given the same names and the same reference numerals, and redundant descriptions are omitted.

도 4는 독립현가장치에서 본 발명에 따른 차량용 제동장치가 설치된 상태를 도시한 사시도로서, 차량의 프레임(10)에 지지프레임(20)이 가로지르며 장착된다.Figure 4 is a perspective view showing a state in which the vehicle braking device according to the present invention is installed in the independent suspension device, the support frame 20 is mounted across the frame 10 of the vehicle.

상기 프레임(10) 외측면에는 상부브라켓(50)이 부착되고, 상기 지지프레임(20) 외측면에 또한 하부브라켓(52)이 부착된다.An upper bracket 50 is attached to the outer surface of the frame 10, and a lower bracket 52 is attached to the outer surface of the support frame 20.

그리고, 상기 상부브라켓(50)에는 어퍼암(62)이 힌지결합되고, 상기 하부브라켓(52)에는 로우암(64)이 힌지결합되며, 상기 어퍼암(62)과 로우암(64)은 너클(60)의 상 하부에 결합된다.In addition, an upper arm 62 is hinged to the upper bracket 50, a lower arm 64 is hinged to the lower bracket 52, and the upper arm 62 and the lower arm 64 are knuckles. It is coupled to the top and bottom of the (60).

한편, 상기 어퍼암(62)의 회전을 감지하는 회전감지센서(70)가 상부브라켓(50)을 마주보며 상기 프레임(10) 외측면에 장착된다.On the other hand, the rotation sensor 70 for detecting the rotation of the upper arm 62 is mounted on the outer surface of the frame 10 facing the upper bracket 50.

상기 회전감지센서(50)는 전자제어유닛(ECU)(80)과 연결되며, 상기 전자제어유닛(80)은 상기 프레임(10)의 내측면에 결합되어 있는 스테핑모터(90)와 연결된다.The rotation sensor 50 is connected to the electronic control unit (ECU) 80, the electronic control unit 80 is connected to the stepping motor 90 is coupled to the inner surface of the frame (10).

도 5에서 나타낸 바와 같이, 상기 스테핑모터(90)의 회전단에는 일정한 각도 내에서만 회전 가능한 회전암(92)이 결합되고, 상기 회전암(92)의 단부에 메인스프링(36)에 의해 연결된 하중감지밸브(30)는 상기 프레임(10) 내측면에 결합된다.As shown in FIG. 5, a rotating arm 92 that is rotatable only within a predetermined angle is coupled to the rotating end of the stepping motor 90, and a load connected to the end of the rotating arm 92 by the main spring 36. The sensing valve 30 is coupled to the inner surface of the frame 10.

도 6은 차량에 하중이 가해지게 되어 바퀴를 지지하는 어퍼암(62)이 회전함을 나타내고 있다.6 shows that the upper arm 62 supporting the wheels is rotated when a load is applied to the vehicle.

상부브라켓(50)에는 어퍼암(62)이 힌지결합되고 상기 어퍼암(62)의 원주면에 부센서(72)가 부착되어 있으며, 상기 부센서(72)에 대응되어 회전감지센서(70)가 배치된다.The upper arm 50 is hinge-coupled to the upper bracket 50, and a sub sensor 72 is attached to the circumferential surface of the upper arm 62, and corresponds to the sub sensor 72 to rotate the rotation sensor 70. Is placed.

따라서, 상기와 같은 본 발명에 따른 차량용 제동장치에서 차량에 하중이 작용하게 되면 상기 어퍼암(62)은 힌지결합에 의해 회전하고, 이때 상기 어퍼암(62)의 회전각도를 회전감지센서(70)가 감지하여 전자제어유닛(80)에 전류로써 하중변화량을 알리게 된다.Accordingly, when a load is applied to the vehicle in the vehicle braking device according to the present invention as described above, the upper arm 62 rotates by a hinge coupling, and at this time, the rotation angle of the upper arm 62 is rotated by the rotation detecting sensor 70. ) Detects and informs the electronic control unit 80 of the load change amount as a current.

그리고, 상기 전자제어유닛(80)에서는 상기 하중변화량 신호를 받아 스테핑모터(90)에 작동신호를 보냄으로써 상기 스테핑모터(90)는 회전암(92)을 회전시키게 된다.In addition, the electronic control unit 80 receives the load change signal and sends an operation signal to the stepping motor 90 so that the stepping motor 90 rotates the rotary arm 92.

이에따라, 상기 회전암(92)의 단부에 연결된 메인스프링(36)에 인장력이 가해지고, 상기 메인스프링(36)의 인장력으로 하중감지밸브(30)가 마스터실린더에서 전달된 유압을 조절하여 브레이크작동부에 전달함으로써 바퀴를 제동하게 된다.Accordingly, a tensile force is applied to the main spring 36 connected to the end of the rotary arm 92, and the load sensing valve 30 controls the hydraulic pressure transmitted from the master cylinder by the tension force of the main spring 36 to operate the brake. The wheels are braked by transmitting to the part.

본 발명에 따른 차량용 제동장치는 하중의 변화가 많고 독립현가장치가 설치된 차량에서도 하중감지밸브를 사용하여, 하중에 따른 제동력을 분배시킬 수 있게 되어 제동력 향상 및 안전운전에 효과를 가져오는 이점이 있다.The braking device for a vehicle according to the present invention has an advantage that the braking force according to the load can be distributed by using a load sensing valve in a vehicle equipped with a large load change and an independent suspension device, thereby improving the braking force and driving safety. .

Claims (1)

상부브라켓(50)에서의 어퍼암(62) 회전을 감지하도록 차량 프레임(10)에 배치되는 회전감지센서(70)와, 상기 회전감지센서(70)의 회전감지상태가 입력되는 전자제어유닛(80)과, 상기 전자제어유닛(80)과 연결되고 차량의 프레임(10) 내측면에 장착되는 스테핑모터(90)와, 상기 스테핑모터(90)의 회전단에 결합된 회전암(92)과, 상기 회전암(92)에 메인스프링(36)으로 결합되고 상기 프레임(10) 내측면에 결합되는 하중감지밸브(30)로 구성된 제동력배분장치를 포함하는 차량용 제동장치.Rotation detection sensor 70 is disposed on the vehicle frame 10 to detect the rotation of the upper arm 62 in the upper bracket 50, and the electronic control unit inputs the rotation detection state of the rotation detection sensor 70 ( 80, a stepping motor 90 connected to the electronic control unit 80 and mounted on the inner surface of the frame 10 of the vehicle, and a rotary arm 92 coupled to the rotating end of the stepping motor 90; And a braking force distribution device including a load sensing valve (30) coupled to the rotary arm (92) by a main spring (36) and coupled to the inner surface of the frame (10).
KR1019960046892A 1996-10-18 1996-10-18 A braking system for an automobile KR100188522B1 (en)

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KR1019960046892A KR100188522B1 (en) 1996-10-18 1996-10-18 A braking system for an automobile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100333285B1 (en) * 1999-12-16 2002-04-25 이계안 Brake system for automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102452383A (en) * 2010-11-03 2012-05-16 中国第一汽车集团公司 Load sensing valve system of vehicle with independent suspension

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100333285B1 (en) * 1999-12-16 2002-04-25 이계안 Brake system for automobile

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