KR100215010B1 - An auxiliary brake system of a vehicle - Google Patents

An auxiliary brake system of a vehicle Download PDF

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Publication number
KR100215010B1
KR100215010B1 KR1019970025271A KR19970025271A KR100215010B1 KR 100215010 B1 KR100215010 B1 KR 100215010B1 KR 1019970025271 A KR1019970025271 A KR 1019970025271A KR 19970025271 A KR19970025271 A KR 19970025271A KR 100215010 B1 KR100215010 B1 KR 100215010B1
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South Korea
Prior art keywords
brake
compressor
braking
vehicle
oil
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KR1019970025271A
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Korean (ko)
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KR19990001822A (en
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한 배
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정몽규
현대자동차주식회사
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Priority to KR1019970025271A priority Critical patent/KR100215010B1/en
Publication of KR19990001822A publication Critical patent/KR19990001822A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE 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
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/03—Brake assistants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE 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
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명은 보조 브레이크에 관한 것으로, 브레이크 폐달(10)과 연동하는 브레이크 로드(11)상에 가동접점(12)을 일체로 설치하고, 상기 가동접점(12)의 경로 양단에는 일측이 배터리(BAT)와 접속된 고정접점(13)(13a)을 설치하며, 타측 고정접점(13a)에는 브레이크 폐달의 조작횟수를 카운팅하여 소정의 제어신호를 출력하는 제어부(20)를 전기적으로 연결하고, 제어부(20)의 후단에는 각각 압축기(30)와 브레이크 패드(40)(41)와 연통된 개폐밸브(50)를 전기적으로 연결하고, 상기 압축기(30)는 엔진의 플라이휠(35)과 벨트 결합되어 동력을 전달받아 파워스티어링의 오일이 저장된 오일탱크(60)와 연통되는 구성으로 브레이크 폐달이 소정시간내에 설정된 횟수동안 동작하면 오일압이 작용하면서 구동축을 압착하여 풋브레이크와 함께 차량을 제동하여 제동거리를 단축시키게 됨.The present invention relates to an auxiliary brake, in which a movable contact 12 is integrally installed on a brake rod 11 that interlocks with a brake closing moon 10, and one side of the movable contact 12 has a battery BAT. ) And a fixed contact point 13 (13a) connected to each other, and the other fixed contact point 13a is electrically connected to a control unit 20 that outputs a predetermined control signal by counting the number of times of brake closing operation. 20 is electrically connected to the on / off valve 50 in communication with the compressor 30 and the brake pads 40 and 41, respectively, and the compressor 30 is belt-coupled with the flywheel 35 of the engine to power When the brake pedal is operated for a set number of times within a predetermined time, the oil pressure is applied and the driving shaft is crimped by braking the vehicle with the foot brake. shorten Kige search.

Description

차량 보조 브레이크장치Vehicle auxiliary brake

본 발명은 차량 브레이크에 관한 것으로, 특히 차륜의 구동축 회전력을 감속시켜 제동시킬 수 있도록 하는 차량 보조 브레이크장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle brake, and more particularly, to a vehicle auxiliary brake device capable of decelerating and braking a driving shaft rotational force of a wheel.

일반적으로 풋 브레이크는 바퀴의 내부에 장치되어 있는 브레이크 드럼 또는 브레이크 디스크 등에 마찰재를 접면시켜 그 마찰력을 이용하여 제동력을 발생시키는 것으로 운전자가 브레이크 폐달을 밟음으로써 모든 바퀴에 제동력이 발생하도록 되어 있으며, 주로 유압식 브레이크를 주로 사용하고 있다.In general, foot brakes generate a braking force by contacting a friction material with a brake drum or brake disc installed inside the wheel, and generate a braking force by using the friction force. Hydraulic brakes are mainly used.

일예로 종래의 풋 브레이크는 도1과 같이 브레이크 폐달(10)을 밟으면 배력장치(2)를 통해 브레이크액이 브레이크 파이프를 통해 휠실린더(3)로 압송하여 브레이크슈(4)를 드럼(5)에 압착시켜 브레이크 작용을 하도록 되어 있다.For example, in the conventional foot brake, when the brake pedal 10 is pressed down as shown in FIG. 1, the brake fluid is pumped to the wheel cylinder 3 through the brake pipe through the power supply device 2, and the brake shoe 4 is transferred to the drum 5. It is pressed against the brake to act.

그러나 이러한 브레이크 장치에 의하면 브레이크슈와 드럼과의 마찰력에 의해 제동력을 발생토록 하기 때문에 고속으로 주행하고 있는 상태에서 급브레이크를 밟을 경우 제동거리가 일정하기 때문에 선행 차량과의 안전거리 미 확보시에는 추돌을 방지하기 어려운 문제점이 있었다.However, according to the brake system, the braking force is generated by the friction between the brake shoe and the drum, so when the sudden brake is applied while driving at high speed, the braking distance is constant. There was a problem that is difficult to prevent.

본 발명은 이러한 점을 감안하여 안출된 것으로, 특히 풋브레이크와 별도로 일정한 제동신호가 연속적으로 이루어질 경우 구동축을 협착하여 제동거리를 단축시킬 수 있도록 하는 차량 보조 브레이크장치를 제공하는데 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object of the present invention is to provide a vehicle auxiliary brake device capable of shortening a braking distance by narrowing a driving shaft when a constant braking signal is continuously performed separately from a foot brake.

이러한 목적을 달성하기 위한 본 발명의 차량 보조 브레이크장치는 브레이크 폐달의 조작을 감지하는 브레이크 폐달 감지수단과, 상기 브레이크 폐달 감지수단에서 검출된 신호를 설정된 프로그램에 따라 연산처리하여 소정의 제어신호를 출력하는 제어수단과, 상기 제어수단의 제어신호에 의해 유압을 가감압하는 유압발생수단과, 상기 유압발생수단에서 가감압된 유압에 의해 차륜의 구동축을 마찰력에 의해 제동하는 제동수단으로 구성됨을 특징으로 한다.The vehicle auxiliary brake apparatus of the present invention for achieving the above object is a brake pedal detection means for detecting the operation of the brake pedal and the signal detected by the brake pedal detection means by arithmetic processing according to a set program to output a predetermined control signal Control means, hydraulic pressure generating means for applying or depressurizing the hydraulic pressure by the control signal of the control means, and braking means for braking the drive shaft of the wheel by the frictional force by the hydraulic pressure pressurized or depressed by the oil pressure generating means. do.

상기 브레이크 폐달 감지수단은 브레이크 로드와 일체로 형성되어 연동하는가동접점과, 전원 및 제어수단과 전기적으로 연결되고 가동접점의 경로상에 설치된 고정접점으로 이루어진 것을 특징으로 한다.The brake pedal detection means is characterized in that the movable contact is formed integrally with the brake rod and the fixed contact is electrically connected to the power source and the control means and installed on the path of the movable contact.

상기 유압발생수단은 엔진의 회전력을 원동력하고 스티어링 휠의 오일탱크와 연통된 압축기로 이루어짐을 특징으로 한다.The hydraulic generating means is characterized by consisting of a compressor driving the rotational force of the engine and in communication with the oil tank of the steering wheel.

상기 상기 유압발생수단과 제동수단의 오일관로상에 제어수단의 제어신호에 구동하는 개폐밸브가 설치됨을 특징으로 한다.The on-off valve for driving the control signal of the control means is installed on the oil line of the hydraulic generating means and the braking means.

이러한 구성에 의하면, 본 발명은 주행중 일정속도 이상에서 연속적으로 브레이크폐달을 밟을 경우 구동축 근접부분에 있는 브레이크 페드가 유압에 의해 압착되면서 제동을 하게 된다.According to this configuration, when the brake pedal is continuously stepped at a predetermined speed or more during driving, the brake pads adjacent to the drive shaft are braked by hydraulic pressure.

도1은 본 발명의 보조브레이크 시스템을 보인 구성도.1 is a block diagram showing an auxiliary brake system of the present invention.

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

10 : 브레이크폐달 11 : 브레이크로드10 brake brake 11: brake rod

12 : 가동접점 13,13a : 고정접점12: movable contact 13,13a: fixed contact

20 : 제어부 30 : 압축기20: control unit 30: compressor

40,41 : 브레이크패드 40,41 : 복원 스프링40,41: Brake pads 40,41: Restoration spring

50 : 개폐밸브 51 : 피스톤50: on-off valve 51: piston

60 : 오일탱크60: oil tank

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 통해 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 보조 브레이크 시스템을 보인 구성도로써, 일반적인 브레이크 구성은 종래와 동일하므로 설명을 생략한다.Figure 1 is a block diagram showing an auxiliary brake system according to the present invention, the general brake configuration is the same as the conventional description will be omitted.

본 고안은 도시한 바와 같이 브레이크 폐달(10)과 연동하는 브레이크 로드(11)상에 가동접점(12)을 일체로 설치하고, 상기 가동접점(12)의 경로 양단에는 일측이 배터리(BAT)와 접속된 고정접점(13)(13a)을 설치하여 브레이크 폐달의 조작을 감지하게 된다.According to the present invention, the movable contact 12 is integrally installed on the brake rod 11 interlocked with the brake pedal moon 10, and one side of the movable contact 12 is connected to one end of the battery BAT. Connected fixed contacts 13 and 13a are installed to sense the operation of the brake pedal.

타측 고정접점(13a)에는 브레이크 폐달의 조작횟수를 카운팅하여 소정의 제어신호를 출력하는 제어부(20)를 전기적으로 연결하고, 제어부(20)의 후단에는 각각 압축기(30)와 브레이크 패드(40)(41)와 연통된 개폐밸브(50)를 전기적으로 연결하며, 상기 압축기 개폐밸브 및 브레이크 패드는 유로파이프(70)로 기밀하게 연결된다.The other fixed contact point 13a electrically connects the control unit 20 that outputs a predetermined control signal by counting the number of times of operation of the brake pedal, and the compressor 30 and the brake pad 40 are respectively connected to the rear ends of the control unit 20. An on / off valve 50 in communication with 41 is electrically connected, and the compressor on / off valve and the brake pad are hermetically connected to the europipe 70.

상기 압축기(30)는 엔진의 플라이휠(35)과 벨트 결합되어 동력을 전달받아 파워스티어링의 오일이 저장된 오일탱크(60)와 연통되어 이의 오일을 가감압하도록 되어 있다.The compressor 30 is belt-coupled with the flywheel 35 of the engine to receive power to communicate with the oil tank 60 in which the oil of the power steering is stored to pressurize and decompress its oil.

상기 압축기(30)와 브레이크 패드(40)(41) 사이에는 제어부(20)의 제어신호에 의해 오일의 유로를 단속하는 개폐밸브(50)가 설치되어 있다.Between the compressor 30 and the brake pads 40 and 41, an on-off valve 50 for controlling the oil flow path by a control signal of the control unit 20 is provided.

이하, 상기한 실시예 구성에 따른 작용을 상세하게 설명하면, 본 발명은 운전자가 브레이크 폐달(10)을 밟을 경우 브레이크 로드(11)가 전진하면서 이와 일체로 형성된 가동접점(12)이 연동하면서 고정접점(13)(13a)과 전기적으로 접속되어 제어부(20)에 배터리(BAT) 전원을 인가하게 된다.Hereinafter, the operation according to the above-described embodiment configuration in detail, the present invention is fixed while the movable contact 12 formed integrally with the brake rod 11 is moved forward when the driver steps on the brake pedal (10) The battery 13 is electrically connected to the contacts 13 and 13a to apply the battery BAT power to the controller 20.

상기 제어부(20)는 고정접점(13)(13a)을 통해 인가된 전원을 일정시간 동안 카운팅하여 설정된 시간내에 브레이크 폐달(10)이 반복적으로 조작될 경우 압축기(30)와 개폐밸브(50)를 동시에 제어하여 오일을 가압한 후 브레이크 패드(40)(41)에 전달함으로써 제동력을 발생토록 한다.The control unit 20 counts the power applied through the fixed contacts 13 and 13a for a predetermined time to operate the compressor 30 and the on / off valve 50 when the brake closing moon 10 is repeatedly operated within a set time. At the same time, the oil is pressurized to control the brake pads 40 and 41 so as to generate a braking force.

즉, 엔진의 플라이휠(35)과 벨트로 연결된 압축기(30)에 전원이 인가되면 마그네틱 클러치(31)와 로터(32)가 접속되면서 엔진의 회전력이 사판식 로타리(33)에 인가되어 스티어링 휠의 오일탱크(60)에 저장된 오일을 압축하게 되고 동시에 개폐밸브(50)가 개로되면서 브레이크 패드(40)(41)에 오일을 이송하여 구동축(42)과 밀착시켜 차량을 제동시키게 된다.That is, when power is applied to the compressor 30 connected to the flywheel 35 and the belt of the engine, the magnetic clutch 31 and the rotor 32 are connected, and the rotational force of the engine is applied to the swash plate rotary 33 to control the steering wheel. The oil stored in the oil tank 60 is compressed and at the same time, the opening / closing valve 50 is opened to transfer the oil to the brake pads 40 and 41 to bring the oil into close contact with the drive shaft 42 to brake the vehicle.

따라서 고속으로 주행중 브레이크 폐달(10)을 밟을 경우 풋브레이크가 동작함과 동시에 보조브레이크가 동작하기 때문에 제동력이 배가되어 제동거리를 단축시킬 수 있게 된다.Therefore, when the brake pedal (10) is stepped while driving at high speed, the foot brake operates and the auxiliary brake operates to double the braking force, thereby reducing the braking distance.

반대로, 브레이크 폐달(10)로 부터 발을 떼면 고정접점(12)이 전기적으로 단락되어 압축기(30)와 개폐밸브(50)에 인가되는 전원이 차단되므로 상기 압축기(30)가 정지하면서 오일이 감압되고 동시에 복원 스프링(40,41)의 복원력에 의해 구동축(42)과 밀착된 브레이크 패드(40)(41)가 이격되면서 제동력이 해제된다.On the contrary, when the foot is released from the brake pedal 10, the fixed contact 12 is electrically shorted to cut off the power applied to the compressor 30 and the on / off valve 50, so that the oil is decompressed while the compressor 30 is stopped. At the same time, the braking force is released while the brake pads 40 and 41 in close contact with the drive shaft 42 are spaced apart by the restoring force of the restoring springs 40 and 41.

이상에서 설명한 바와 같이 본 발명은 브레이크 폐달의 조작상태를 감지하고 스티어링 휠에 사용되는 오일을 엔진의 동력에 의해 구동하는 압축기를 통해 그 유압을 제어하여 구동축의 회전력을 제한토록 함으로써 풋브레이크와 함께 구동하여 제동력을 배가시켜 제동거리를 단축시킬 수 있기 때문에 안전거리 미확보로 인해 사고 발생율을 현저하게 감소시킬 수 있게 된다.As described above, the present invention senses the operation state of the brake pedal and controls the hydraulic pressure through a compressor for driving the oil used in the steering wheel by the power of the engine to drive the foot brake by limiting the rotational force of the drive shaft. Therefore, the braking distance can be shortened by doubling the braking force, which can significantly reduce the incidence of accidents due to the inability to secure the safety distance.

Claims (4)

브레이크 폐달의 조작을 감지하는 브레이크 폐달 감지수단과, 상기 브레이크 폐달 감지수단에서 검출된 신호를 설정된 프로그램에 따라 연산처리하여 소정의 제어신호를 출력하는 제어수단과, 상기 제어수단의 제어신호에 의해 유압을 가감압하는 유압발생수단과, 상기 유압발생수단에서 가감압된 유압에 의해 차륜의 구동축을 마찰력에 의해 제동하는 제동수단으로 구성됨을 특징으로 하는 차량 보조 브레이크장치.Brake pedal detection means for detecting the operation of the brake pedal, the control means for outputting a predetermined control signal by arithmetic processing the signal detected by the brake pedal detection means according to a set program, and hydraulic pressure by the control signal of the control means And brake means for braking the drive shaft of the wheel by the frictional force by the pressure generated and depressed in the oil pressure generating means. 제1항에 있어서, 상기 브레이크 폐달 감지수단은 브레이크 로드와 일체로 형성되어 연동하는가동접점과, 전원 및 제어수단과 전기적으로 연결되고 가동접점의 경로상에 설치된 고정접점으로 이루어진 것을 특징으로 하는 차량 보조 브레이크장치.2. The vehicle according to claim 1, wherein the brake close detection means comprises a movable contact formed integrally with the brake rod and interlocked with the brake rod, and a fixed contact electrically connected to the power supply and the control means and installed on a path of the movable contact. Auxiliary brake. 제1항에 있어서, 상기 유압발생수단은 엔진의 회전력을 원동력하고 스티어링 휠의 오일탱크와 연통된 압축기로 이루어짐을 특징으로 하는 차량 보조 브레이크장치.2. The vehicle auxiliary brake apparatus according to claim 1, wherein the hydraulic pressure generating means comprises a compressor which drives the rotational force of the engine and communicates with the oil tank of the steering wheel. 제1항에 있어서, 상기 유압발생수단과 제동수단의 오일관로상에 제어수단의 제어신호에 구동하는 개폐밸브가 설치됨을 특징으로 하는 차량 보조 브레이크장치.2. The vehicle auxiliary brake apparatus according to claim 1, wherein an on / off valve for driving a control signal of a control means is provided on an oil line of the oil pressure generating means and the braking means.
KR1019970025271A 1997-06-17 1997-06-17 An auxiliary brake system of a vehicle KR100215010B1 (en)

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KR100383971B1 (en) * 2000-12-20 2003-05-14 현대자동차주식회사 Sudden departure preventing device of vehicle
CN112026723A (en) * 2020-10-09 2020-12-04 李勇 Vehicle brake auxiliary mechanism

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