KR20040041469A - A break system of an automobile - Google Patents

A break system of an automobile Download PDF

Info

Publication number
KR20040041469A
KR20040041469A KR1020020069838A KR20020069838A KR20040041469A KR 20040041469 A KR20040041469 A KR 20040041469A KR 1020020069838 A KR1020020069838 A KR 1020020069838A KR 20020069838 A KR20020069838 A KR 20020069838A KR 20040041469 A KR20040041469 A KR 20040041469A
Authority
KR
South Korea
Prior art keywords
brake
pressure
speed
vehicle
wheel
Prior art date
Application number
KR1020020069838A
Other languages
Korean (ko)
Inventor
윤철수
Original Assignee
윤철수
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.)
Filing date
Publication date
Application filed by 윤철수 filed Critical 윤철수
Priority to KR1020020069838A priority Critical patent/KR20040041469A/en
Priority to AU2003276762A priority patent/AU2003276762A1/en
Priority to PCT/KR2003/002404 priority patent/WO2004043755A1/en
Publication of KR20040041469A publication Critical patent/KR20040041469A/en

Links

Classifications

    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • 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
    • B60T13/74—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 electrical assistance or drive
    • B60T13/741—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 electrical assistance or drive acting on an ultimate actuator
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1761—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • B60T8/17616—Microprocessor-based systems
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4266—Debooster systems having an electro-mechanically actuated expansion unit, e.g. solenoid, electric motor, piezo stack
    • 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
    • B60Y2400/303—Speed sensors
    • 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
    • B60Y2400/303—Speed sensors
    • B60Y2400/3032—Wheel speed sensors
    • 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
    • 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
    • B60Y2400/81—Braking systems

Abstract

PURPOSE: A brake system of a vehicle is provided to brake the vehicle with applying a speed deviation ratio having maximum deceleration to the speed deviation of wheels and the vehicle and accordingly to prevent the skid caused by locking wheels and minimize a braking distance by mounting a release valve and a decompressing cylinder to a brake fluid-release key to the speed deviation of wheels and the vehicle. CONSTITUTION: A brake system of a vehicle is composed of a wheel speed sensor(120) for sensing the speed of wheels; a vehicle speed sensor(130) for sensing the speed of the vehicle; a controller(110) for comparing and computing the speed input through the wheel speed sensor and the vehicle speed sensor and generating a control signal if the deviation ratio of speed is over the speed deviation ratio generating maximum deceleration; a release valve(200) controlled by the controller to release the hydraulic pressure of a brake hydraulic line(530); and a decompressing cylinder(300) for elastically filling the brake fluid released by the release valve and decompressing the brake fluid at the constant pressure.

Description

자동차의 브레이크 시스템{A break system of an automobile}Break system of an automobile

본 발명은 자동차의 브레이크 시스템에 관한 것으로, 더욱 상세하게는 브레이크 유압라인 상에 릴리스벨브와 감압실린더를 구비하여서 브레이크 작동시 브레이크압을 감압시켜 브레이크 작동시 바퀴의 잠김으로 인한 미끄러짐을 방지하여서 제동거리를 최소화할 수 있도록 함을 목적으로 한 것이다.The present invention relates to a brake system of a motor vehicle, and more particularly, a release valve and a pressure reducing cylinder are provided on a brake hydraulic line to reduce the brake pressure during brake operation to prevent slippage due to locking of the wheel during brake operation. The purpose is to minimize the problem.

일반적으로, 자동차에는 주행시 차량의 속도를 감속 또는 정지를 위한 브레이크 시스템이 구비되어 있으며, 상기한 바와 같은 브레이크 시스템은 운전자의 발조작력을 기계적에너지로 전환시키는 브레이크페달과, 상기 브레이크페달의 기계적 에너지를 유압 에너지로 변환시키는 마스터실린더와, 상기 마스터실린더에서 발생에 유압에너지를 각각의 바퀴로 전달하는 브레이크유압라인과, 상기 브레이크유압라인을 통하여 공급되는 유압에너지를 기계적에너지로 복귀시키는 휠실린더와, 상기 휠실린더에 의한 기계적에너지에 의하여 바퀴의 회전을 감속시키는 브레이크장치로 구성된 것이다.In general, a vehicle is provided with a brake system for decelerating or stopping the speed of the vehicle when driving, and the brake system described above includes a brake pedal for converting a driver's footing force into mechanical energy and a mechanical energy of the brake pedal. A master cylinder for converting hydraulic energy, a brake hydraulic line for transferring hydraulic energy to each wheel upon generation in the master cylinder, a wheel cylinder for returning hydraulic energy supplied through the brake hydraulic line to mechanical energy, and It is composed of a brake device to reduce the rotation of the wheel by the mechanical energy by the wheel cylinder.

여기서, 브레이크장치는 바퀴에 결합되는 디스크와 상기 디스크와 마찰 접촉되는 브레이크패드 또는 바퀴에 결합되는 드럼과 상기 드럼과 마찰 접촉되는 브레이크슈로 구성되는 것이다.Here, the brake device is composed of a disk coupled to the wheel, the brake pad or the drum in friction contact with the disk and the brake and the brake shoe in friction contact with the drum.

상기한 바와 같이 구성된 종래의 브레이크 시스템은 운전자가 주행 중 차속을 줄이거나 정지시키기 위하여 브레이크페달을 밟게 되면 상기 브레이크페달에 의하여 운전자의 조작력이 기계적에너지로 변화되어서 마스터실린더로 전달되고, 상기 마스터실린더로 전달된 기계적에너지는 유압에너지로 변환되어서 브레이크유압라인을 통하여 휠실린더에 공급되며, 상기 휠실린더로 공급된 유압에너지는 다시 기계적에너지로 변환되어서 브레이크장치를 작동시켜 바퀴의 회전속도를 줄이므로서 자동차가 정지하게 되는 것이다.In the conventional brake system configured as described above, when the driver presses the brake pedal to reduce or stop the vehicle speed while driving, the driver's operating force is converted into mechanical energy by the brake pedal and transferred to the master cylinder. The delivered mechanical energy is converted into hydraulic energy and supplied to the wheel cylinder through the brake hydraulic line, and the hydraulic energy supplied to the wheel cylinder is converted into mechanical energy again to operate the brake device to reduce the rotational speed of the car. Will be stopped.

그러나, 상기한 바와 같이 구성된 종래의 브레이크 시스템에 의한 자동차는 운전자가 차량의 속도를 줄이거나 정지시키기 위하여 브레이크페달을 밟게 되면 바퀴 외주연에서의 속도가 차량의 속도보다 감속되면서 노면과 마찰접촉되는 과정에 차속이 줄어들게 되는 것이나 이때, 바퀴 외주연의 속도와 차속의 편차가 크게 되면 바퀴가 지면으로부터 미끄러지게 되고 이상과 같이 바퀴가 지면에서 미끄러지게 되면 바퀴와 노면 사이의 마찰력이 상실되어서 바퀴가 더 이상 회전되지 않은 잠김현상이 발생하게 되며 이로인하여 제동거리가 급격하게 길어지게 되는 문제점이 있었다.However, in the conventional brake system configured as described above, when the driver presses the brake pedal to reduce or stop the speed of the vehicle, the speed at the outer periphery of the wheel is reduced to the speed of the vehicle and friction contact with the road surface. In this case, the speed of the wheel is reduced, but if the speed of the outer circumference of the wheel increases and the speed of the car increases, the wheel slips off the ground. If the wheel slips off the ground, the friction between the wheel and the road surface is lost. Unrotated locking phenomenon occurs and this causes a problem that the braking distance is suddenly lengthened.

한편, 상기한 바와 같이 바퀴의 속도와 차속의 편차로 인한 미끄러짐에 의하여 바퀴가 잠기게 되면, 브레이크장치로 공급되는 유압을 차단하여서 잠김이 풀리게 하고, 바퀴의 회전속도가 일정속도로 복귀되면 브레이크장치로 유압을 다시 공급하는 ABS(Anti-lock Break System)를 구비하여서 바퀴의 잠김을 방지하였으나, 브레이크의 해제 후 작동과 다시 해제의 사이에 실제적으로 바퀴의 미끄러짐인 마모로 인한 스키드 흔적이 발생하며, 이상과 같은 마모는 바퀴의 수명을 단축시키고 편마모를 초래하게 되는 등의 문제점이 있었다.On the other hand, when the wheel is locked by the slip due to the deviation of the wheel speed and the vehicle speed as described above, the lock is released by blocking the hydraulic pressure supplied to the brake device, the brake device when the rotational speed of the wheel returns to a constant speed ABS (Anti-lock Break System) to supply the hydraulic pressure back to prevent the locking of the wheel, but after the brake release, skid traces due to wear, which is the actual sliding of the wheel between the operation and release again, Wear as described above has a problem such as shortening the life of the wheel and causing uneven wear.

이에, 본 발명은 상술한 문제점을 해결하기 위하여 창출한 것으로, 브레이크유압라인 상에 브레이크 유압라인 상에 릴리스벨브과 감압실린더를 구비하여서Accordingly, the present invention has been made to solve the above-mentioned problems, and provided with a release valve and a pressure reduction cylinder on the brake hydraulic line on the brake hydraulic line

바퀴의 속도와 차속의 속도편차율이 최대의 감속도를 갖게 브레이크유압을 감소시켜 브레이크 작동시 바퀴의 잠김으로 인한 미끄러짐을 방지하여서 제동거리를 최소화할 수 있도록 한 것이다.The speed deviation of the wheel speed and the speed of the vehicle has the maximum deceleration to reduce the brake hydraulic pressure to prevent the slippage caused by the locking of the wheel during brake operation to minimize the braking distance.

도 1 은 본 발명에 따른 일 실시예를 보인 구성도.1 is a block diagram showing an embodiment according to the present invention.

도 2 는 본 발명에 따른 감압실린더의 일 실시예를 보인 측 단면도.Figure 2 is a side cross-sectional view showing an embodiment of a pressure reducing cylinder according to the present invention.

도 3 은 본 발명에 따른 감압실린더의 다른 실시예를 보인 측 단면도.Figure 3 is a side cross-sectional view showing another embodiment of a reduced pressure cylinder according to the present invention.

도 4 는 본 발명에 따른4 is in accordance with the present invention

일 실시예를 보인 브레이크압 가변수단의 단면도.Cross-sectional view of the brake pressure variable means showing an embodiment.

도 5 는 본 발명에 따른5 is in accordance with the present invention

다른 실시예를 보인 브레이크압 가변수단의 단면도.Sectional drawing of a brake pressure variable means which shows another embodiment.

도 6 은 본 발명에 따른6 is according to the invention

또 다른 실시예를 보인 브레이크압 가변수단의 단면도.Sectional view of the brake pressure variable means showing another embodiment.

도 7 은 본 발명에 따른7 is in accordance with the present invention

또 다른 실시예를 보인 브레이크압 가변수단의 단면도.Sectional view of the brake pressure variable means showing another embodiment.

＜도면의 주요부분에 대한 부호의 사랑＞<Love of signs for main parts of drawing>

110 : 컨트롤러 120 : 휠속센서110: controller 120: wheel speed sensor

130 : 차속센서 140 : 압력센서130: vehicle speed sensor 140: pressure sensor

200 : 릴리스벨브200: release valve

300 : 감압실린더300: decompression cylinder

311 : 감압플런져 312 : 감압조절구 313 : 감압스프링311: decompression plunger 312: decompression regulator 313: decompression spring

320 : 조절구구동장치320: control drive device

400 : 브레이크압가변수단400: brake pressure variable stage

411 : 연결라인 412 : 가변압실린더 413 : 가변압플런져411: connection line 412: variable pressure cylinder 413: variable pressure plunger

421 : 나사축액츄에이터421: Screw Shaft Actuator

421a: 나사축 421b: 구동모터421a: screw shaft 421b: drive motor

422 : 유공압액츄에이터422: Pneumatic Actuator

423 : 솔레노이드액츄에이터 423a: 아마츄어423: solenoid actuator 423a: amateur

431 : 나사플런져 432 : 플런져구동장치431: screw plunger 432: plunger drive device

510 : 브레이크페달 520 : 마스터실린더510: brake pedal 520: master cylinder

530 : 브레이크유압라인 540 : 휠실린더530: Brake hydraulic line 540: Wheel cylinder

이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

본 발명은 브레이크 작동시 브레이크 작동시 바퀴의 잠김으로 인한 미끄러짐을 방지하여서 제동거리를 최소화할 수 있도록 한 것으로, 운전자의 발 조작력을 기계적에너지로 전환시키는 브레이크페달(510)과, 상기 브레이크페달(510)의 기계적 에너지를 유압 에너지로 변환시키는 마스터실린더(520)와, 상기 마스터실린더(520)에서 발생한 유압에너지를 각각의 바퀴로 전달하는 브레이크유압라인(530)과, 상기 브레이크유압라인(530)을 통하여 공급되는 유압에너지를 기계적 에너지로 복귀시키는 휠실린더(540)와, 상기 휠실린더(540)에 의한 기계적에너지에 의하여 바퀴의 회전을 감속시키는 브레이크장치로 구성된 브레이크 시스템에 있어서, 바퀴의 속도를 감지하는 휠속센서(120)와, 차량의 속도를 감지하는 차속센서(130)와, 상기 휠속센서(120)와 차속센서(130)를 통하여 입력되는 속도를 비교연산하여 속도의 편차율이 최대 감속도를 발생시키는 속도편차율을 넘어서게 되면 제어신호를 발생시키는 컨트롤러(110)와, 상기 컨트롤러(110)에 의하여 제어되어서 브레이크유압라인(530)상의 유압을 릴리스시키는 릴리스벨브(200) 및 상기 릴리스벨브(200)를 통하여 릴리스된 브레이크액을 탄성충전하여 일정 압력으로 감압시키는 감압실린더(300)를 구비한 것이다.The present invention is to minimize the braking distance by preventing the sliding due to the locking of the wheel during the brake operation, the brake pedal 510 for converting the driver's foot operation force to mechanical energy, and the brake pedal 510 Master cylinder 520 for converting the mechanical energy of the hydraulic pressure into hydraulic energy, a brake hydraulic line 530 for transmitting the hydraulic energy generated in the master cylinder 520 to each wheel, and the brake hydraulic line 530 In the brake system comprising a wheel cylinder 540 for returning the hydraulic energy supplied through the mechanical energy, and a brake device for reducing the rotation of the wheel by the mechanical energy by the wheel cylinder 540, the speed of the wheel sensing Wheel speed sensor 120, the vehicle speed sensor 130 for detecting the speed of the vehicle, the wheel speed sensor 120 and the vehicle speed sensor 130 Comparing the speed input through the speed difference rate exceeds the speed deviation rate that generates the maximum deceleration controller 110 for generating a control signal and the controller 110 is controlled by the brake hydraulic line ( It is provided with a release valve 200 for releasing the hydraulic pressure on the 530 and the decompression cylinder 300 to elastically charge the brake fluid released through the release valve 200 to reduce the pressure to a predetermined pressure.

한편, 상기 감압실린더(300)에는 감압력의 조절을 위하여 감압플런져(311)을 가압하고 있는 감압스프링(312)의 가압력을 조절할 수 있게 나사결합된 감압조절구(313)로 구성하여 실시할 수 있으며, 상기 감압조절구(313)는 컨트롤러(110)에 의하여 제어되어 브레이크유압라인(530)상의 유압력이 바퀴와 차속의 속도편차율이 최대의 감속도를 갖게 감압조절구(313)를 회동시키는 조절구구동장치(320)를 구비하여 실시할 수 있는 것이다.On the other hand, the decompression cylinder 300 is implemented by a pressure-reducing regulator 313 screwed to adjust the pressing force of the decompression spring 312 pressurizing the decompression plunger 311 to control the decompression force The decompression regulator 313 may be controlled by the controller 110 so that the hydraulic pressure on the brake hydraulic line 530 may allow the speed deviation ratio of the wheel and the vehicle speed to have the maximum deceleration. It can be implemented by providing a control drive device 320 to rotate.

한편, 본 발명의 다른 실시예로는 릴리스벨브(200)의 후단에 컨트롤러(110)의 제어에 따라 브레이크유압라인(530)상의 유압력이 바퀴와 차속의 속도편차율이 최대의 감속도를 갖게하는 브레이크압 가변수단(400)을 구비하여 실시할 수 있는 것이다.On the other hand, according to another embodiment of the present invention, the hydraulic force on the brake hydraulic line 530 under the control of the controller 110 at the rear end of the release valve 200 has a speed reduction ratio between the wheel and the vehicle speed. The brake pressure variable means 400 can be implemented.

여기서, 상기 브레이크압 가변수단(400)은 브레이크유압라인(530)과 연결되는 연결라인(411)과, 상기 연결라인(411)을 통하여 브레이크유압라인(530)상의 브레이크액을 릴리스저장할 수 있게 일정 체적을 갖는 가변압실린더(412)와, 상기 가변압실린더(412)에 슬라이딩 유동가능하게 수납되어서 브레이크유압라인(530)상의 브레이크액을 릴리스 및 가압할 수 있게 컨트롤러(110)에 의하여 제어되는 액츄에이터에 의하여 슬라이딩 동작되는 가변압플런져(413) 또는 플런져구동장치(432)에 의하여 회동동작되는 나사플런져(431)로 구성하여 실시할 수 있는 것이다.Here, the brake pressure variable means 400 is constant so as to release and store the brake fluid on the brake hydraulic line 530 through the connection line 411 connected to the brake hydraulic line 530, and the connection line 411. A variable pressure cylinder 412 having a volume and an actuator that is slidably housed in the variable pressure cylinder 412 and controlled by the controller 110 to release and pressurize the brake fluid on the brake hydraulic line 530. By the variable pressure plunger 413 or sliding plunger driving device 432 by the screw plunger 431 rotated by the operation can be implemented.

한편, 상기 액츄에이터는 가변압플런져(413)의 후단에 결속되는 나사축(421a)과 구동모터(421b)로 이루어진 나사축액츄에이터(421)로 구성하거나, 가변압플런져(413)의 후단에 결속되는 피스톤로드(422a)으로 이루어져 유공압에 의하여 동작되는 유공압액츄에이터(422)로 구성하거나, 가변압플런져(413)의 후단에 결속되는 아마츄어(423a)로 이루어진 솔레노이드액츄에이터(423)로 구성하여 실시할 수 있는 것이다.On the other hand, the actuator is composed of a screw shaft actuator 421 consisting of a screw shaft 421a and a driving motor 421b that are fastened to the rear end of the variable pressure plunger 413, or to the rear end of the variable pressure plunger 413. Composed of a piston rod (422a) to operate by a pneumatic pressure actuator 422 or a solenoid actuator (423) consisting of an armature (423a) that is bound to the rear end of the variable pressure plunger (413) can be carried out. will be.

또한, 본 발명의 실시예 있어서, 브레이크유압의 압력에 따라 브레이크압 가변수단의 동작을 정밀 제어할 수 있게 컨트롤러(110)로 압력신호를 입력하는 압력센서(140)를 구비하여 실시할 수 있는 것이다.In addition, in the embodiment of the present invention, it can be carried out with a pressure sensor 140 for inputting a pressure signal to the controller 110 to precisely control the operation of the brake pressure variable means according to the pressure of the brake hydraulic pressure. .

이하, 본 발명의 작동과정에 대하여 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described.

상기한 바와 같이 바퀴의 속도를 감지하는 휠속센서(120)와, 차량의 속도를 감지하는 차속센서(130)와, 상기 휠속센서(120)와 차속센서(130)를 통하여 입력되는 속도를 비교연산하여 속도의 편차율이 최대 감속도를 발생시키는 속도편차율을 넘어서게 되면 제어신호를 발생시키는 컨트롤러(110)와, 상기 컨트롤러(110)에 의하여 제어되어서 브레이크유압라인(530)상의 유압을 릴리스시키는 릴리스벨브(200) 및 상기 릴리스벨브(200)를 통하여 릴리스된 브레이크액을 탄성충전하여 일정 압력으로 감압시키는 감압실린더(300)로 구성한 본 발명을 적용한 차량으로 주행하는 과정에 있어 급브레이크 조작하게 되면, 브레이크유압라인(530)상의 유압이 급격히 상승하고 브레이크장치가 작동하여 바퀴의 속도가 급격히 감속되게 된다.Comparing the speed input through the wheel speed sensor 120 for detecting the speed of the wheel, the vehicle speed sensor 130 for detecting the speed of the vehicle, and the wheel speed sensor 120 and the vehicle speed sensor 130 as described above Release the hydraulic pressure on the brake hydraulic line 530 by the controller 110 and the controller 110 to generate a control signal when the deviation rate of the speed exceeds the speed deviation rate that generates the maximum deceleration. When sudden brake operation is performed in the process of driving the vehicle according to the present invention constituted by the pressure reducing cylinder 300 which elastically charges the brake fluid released through the valve 200 and the release valve 200 to reduce the pressure to a predetermined pressure, The hydraulic pressure on the brake hydraulic line 530 rises sharply and the brake device is operated to drastically reduce the speed of the wheels.

이때, 컨트롤러(110)는 휠속센서(120)를 통하여 입력되는 바퀴의 속도와 차속센서(130)를 통하여 입력되는 차속을 비교 연산하여서 속도편차율이 최대의 마찰저항을 가져 최대의 감속도를 얻을 수 있는 범위를 넘어서 바퀴의 미끄러짐이 발생하려는 시점 이상이되면, 컨트롤러(110)는 릴리스벨브(200)로 감압신호를 출력한다.At this time, the controller 110 compares the speed of the wheel input through the wheel speed sensor 120 and the vehicle speed input through the vehicle speed sensor 130 to obtain the maximum deceleration rate with the maximum frictional resistance. When it is more than the time point that the slip of the wheel to occur over the range, the controller 110 outputs a decompression signal to the release valve (200).

상기 컨트롤러(110)로부터 감압신호를 입력받는 릴리스벨브(200)는 브레이크 유압라인(530)의 브레이크액을 릴리스시키고, 릴리스된 브레이크액은 감압실린더(300)로 탄성충전되게 되는 것이다.The release valve 200 receiving the decompression signal from the controller 110 releases the brake fluid of the brake hydraulic line 530, and the released brake fluid is elastically charged to the pressure reduction cylinder 300.

이상과 같이 브레이이크압이 감압되게 되면 바퀴의 감속도가 감소되어 휠속과 차속의 속도편차가 설정범위에 위치되게 되어 바퀴의 미끄러짐 없이 최소의 제동거리가 확보되게 되는 것이다.When the brake pressure is reduced as described above, the deceleration of the wheel is reduced, so that the speed deviation between the wheel and the vehicle speed is located in the set range, so that the minimum braking distance is ensured without slipping of the wheel.

한편, 상기 감압실린더(300)의 감압조절구(313)를 회동시키는 조절구구동장치(320)를 구비하거나, 릴리스벨브(200)의 후단에 브레이크압 가변수단(400)을 구비하므로서 바퀴와 차속의 속도편차에 따라 릴리스된 브레이크액의 릴리스양을 조절하여 브레이크유압라인(530)상의 브레이크압이 최상의 감속도가 유지되게 조절할 수 있는 것이다.On the other hand, the wheel and the vehicle speed provided with a control drive device 320 for rotating the decompression control device 313 of the decompression cylinder 300, or the brake pressure variable means 400 at the rear end of the release valve 200 By adjusting the release amount of the brake fluid released according to the speed deviation of the brake pressure on the brake hydraulic line 530 can be adjusted to maintain the best deceleration.

따라서, 본 발명은 바퀴의 속도와 차속의 편차에 따라 브레이크액 릴리스키는 릴리스벨브와 감압실린더를 구비하므로서, 브레이크 작동시 바퀴의 속도와 차속의 편차가 최대의 감속도를 갖는 속도편차율을 가지며 제동이 이루어지게 하여 바퀴의 잠김으로 인한 미끄러짐이 방지됨과 더불어 제동거리가 최소화되게 되는 매우 유용한 것이다.Therefore, according to the present invention, since the brake fluid release key has a release valve and a pressure reducing cylinder according to the deviation of the wheel speed and the vehicle speed, the deviation of the wheel speed and the vehicle speed at the time of brake operation has a speed deviation ratio having the maximum deceleration. It is very useful that the braking is prevented and the sliding distance due to the locking of the wheel is prevented and the braking distance is minimized.

Claims (8)

자동차의 브레이크 시스템에 있어서;In a brake system of an automobile; 바퀴의 속도를 감지하는 휠속센서(120)와, 차량의 속도를 감지하는 차속센서(130)와, 상기 휠속센서(120)와 차속센서(130)를 통하여 입력되는 속도를 비교연산하여 속도의 편차율이 최대 감속도를 발생시키는 속도편차율을 넘어서게 되면 제어신호를 발생시키는 컨트롤러(110)와, 상기 컨트롤러(110)에 의하여 제어되어서 브레이크유압라인(530)상의 유압을 릴리스시키는 릴리스벨브(200) 및 상기 릴리스벨브(200)를 통하여 릴리스된 브레이크액을 탄성충전하여 일정 압력으로 감압시키는 감압실린더(300)를 구비한 것을 특징으로 하는 자동차의 브레이크 시스템.Comparision of the speed input through the wheel speed sensor 120 for detecting the speed of the wheel, the vehicle speed sensor 130 for detecting the speed of the vehicle, and the speed input through the wheel speed sensor 120 and the vehicle speed sensor 130, the deviation of the speed When the ratio exceeds the speed deviation rate that generates the maximum deceleration, the controller 110 for generating a control signal and the release valve 200 controlled by the controller 110 to release the hydraulic pressure on the brake hydraulic line 530. And a decompression cylinder (300) configured to elastically charge the brake fluid released through the release valve (200) to decompress it to a predetermined pressure. 제 1 항에 있어서;The method of claim 1; 상기 감압실린더(300)에는 감압력의 조절을 위하여 감압플런져(311)을 가압하고 있는 감압스프링(312)의 가압력을 조절할 수 있게 나사결합된 감압조절구(313)로 구성하되,The decompression cylinder 300 is composed of a decompression regulator 313 screwed to adjust the pressing force of the decompression spring 312 pressurizing the decompression plunger 311 to control the decompression force, 상기 감압조절구(313)는 컨트롤러(110)에 의하여 제어되어 브레이크유압라인(530)상의 유압력이 바퀴와 차속의 속도편차율이 최대의 감속도를 갖게 감압조절구(313)를 회동시키는 조절구구동장치(320)를 구비한 것을 특징으로 하는 자동차의 브레이크 시스템.The depressurization control unit 313 is controlled by the controller 110 so that the hydraulic force on the brake hydraulic line 530 rotates the depressurization control unit 313 such that the speed deviation ratio between the wheel and the vehicle speed has the maximum deceleration rate. Brake system for a vehicle, characterized in that provided with a drive device (320). 제 1 항에 있어서;The method of claim 1; 상기 릴리스벨브(200)의 후단에 컨트롤러(110)의 제어에 따라 브레이크유압라인(530)상의 유압력이 바퀴와 차속의 속도편차율이 최대의 감속도를 갖게하는 브레이크압 가변수단(400)을 구비하되,At the rear end of the release valve 200, under the control of the controller 110, the hydraulic pressure on the brake hydraulic line 530 has a brake pressure variable means 400 such that the speed deviation rate between the wheel and the vehicle speed has the maximum deceleration rate. But 상기 브레이크압 가변수단(400)은 브레이크유압라인(530)과 연결되는 연결라인(411)과, 상기 연결라인(411)을 통하여 브레이크유압라인(530)상의 브레이크액을 릴리스저장할 수 있게 일정 체적을 갖는 가변압실린더(412)와, 상기 가변압실린더(412)에 슬라이딩 운동가능하게 수납되어서 브레이크유압라인(530)상의 브레이크액을 릴리스 및 가압할 수 있게 컨트롤러(110)에 의하여 제어되는 액츄에이터에 의하여 슬라이딩 동작되는 가변압플런져(413)로 구성한 것을 특징으로 하는 자동차의 브레이크 시스템.The brake pressure variable means 400 is connected to the brake hydraulic line 530, the connection line 411, and through the connection line 411 a predetermined volume to release and store the brake fluid on the brake hydraulic line 530. By the variable pressure cylinder 412 and the actuator which is accommodated in the variable pressure cylinder 412 so as to be slidable, and controlled by the controller 110 to release and pressurize the brake fluid on the brake hydraulic line 530. A brake system for a vehicle, comprising a variable pressure plunger (413) sliding. 제 1 항에 있어서;The method of claim 1; 상기 릴리스벨브(200)의 후단에 컨트롤러(110)의 제어에 따라 브레이크유압라인(530)상의 유압력이 바퀴와 차속의 속도편차율이 최대의 감속도를 갖게하는 브레이크압 가변수단(400)을 구비하되,At the rear end of the release valve 200, under the control of the controller 110, the hydraulic pressure on the brake hydraulic line 530 has a brake pressure variable means 400 such that the speed deviation rate between the wheel and the vehicle speed has the maximum deceleration rate. But 상기 브레이크압 가변수단(400)은 브레이크유압라인(530)과 연결되는 연결라인(411)과, 상기 연결라인(411)을 통하여 브레이크유압라인(530)상의 브레이크액을 릴리스저장할 수 있게 일정 체적을 갖는 가변압실린더(412)와, 상기가변압실린더(412)에 슬라이딩 유동가능하게 수납되어서 브레이크유압라인(530)상의 브레이크액을 릴리스 및 가압할 수 있게 컨트롤러(110)에 의하여 제어되는 플런져구동장치(432)에 의하여 회동동작되는 나사플런져(431)로 구성한 것을 특징으로 하는 자동차의 브레이크 시스템.The brake pressure variable means 400 is connected to the brake hydraulic line 530, the connection line 411, and through the connection line 411 a predetermined volume to release and store the brake fluid on the brake hydraulic line 530. A variable pressure cylinder 412 having a variable pressure cylinder 412 and a plunger drive controlled by the controller 110 to be slidably flowable in the variable pressure cylinder 412 to release and pressurize the brake fluid on the brake hydraulic line 530. Brake system of a vehicle, characterized in that consisting of a screw plunger (431) which is rotated by the device (432). 제 3 항에 있어서;The method of claim 3; 상기 액츄에이터는 가변압플런져(413)의 후단에 결속되는 나사축(421a)과 구동모터(421b)로 이루어진 나사축액츄에이터(421)로 구성한 것을 특징으로 하는 자동차의 브레이크 시스템.The actuator is a brake system of a vehicle comprising a screw shaft actuator (421) consisting of a screw shaft (421a) and a driving motor (421b) which are coupled to a rear end of the variable pressure plunger (413). 제 3 항에 있어서;The method of claim 3; 상기 액츄에이터는 가변압플런져(413)의 후단에 결속되는 피스톤로드(422a)으로 이루어져 유공압에 의하여 동작되는 유공압액츄에이터(422)로 구성한 것을 특징으로 하는 자동차의 브레이크 시스템.The actuator comprises a piston rod (422a) that is coupled to the rear end of the variable pressure plunger (413), the brake system of the vehicle, characterized in that composed of a hydraulic pneumatic actuator (422) operated by the hydraulic pressure. 제 3 항에 있어서;The method of claim 3; 상기 액츄에이터는 가변압플런져(413)의 후단에 결속되는 아마츄어(423a)로 이루어진 솔레노이드액츄에이터(423)로 구성한 것을 특징으로 하는 자동차의 브레이크 시스템.The actuator is a brake system of a vehicle, characterized in that consisting of a solenoid actuator (423) consisting of an armature (423a) is coupled to the rear end of the variable pressure plunger (413). 제 1 항에 있어서;The method of claim 1; 브레이크유압의 압력에 따라 브레이크압 가변수단의 동작을 정밀 제어할 수 있게 컨트롤러(110)로 압력신호를 입력하는 압력센서(140)를 구비한 것을 특징으로 하는 자동차의 브레이크 시스템.And a pressure sensor (140) for inputting a pressure signal to the controller (110) to precisely control the operation of the brake pressure variable means according to the pressure of the brake hydraulic pressure.
KR1020020069838A 2002-11-11 2002-11-11 A break system of an automobile KR20040041469A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020020069838A KR20040041469A (en) 2002-11-11 2002-11-11 A break system of an automobile
AU2003276762A AU2003276762A1 (en) 2002-11-11 2003-11-10 A brake system of an automobile
PCT/KR2003/002404 WO2004043755A1 (en) 2002-11-11 2003-11-10 A brake system of an automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020069838A KR20040041469A (en) 2002-11-11 2002-11-11 A break system of an automobile

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR20-2002-0033839U Division KR200302653Y1 (en) 2002-11-12 2002-11-12 A break system of an automobile

Publications (1)

Publication Number Publication Date
KR20040041469A true KR20040041469A (en) 2004-05-17

Family

ID=32310840

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020069838A KR20040041469A (en) 2002-11-11 2002-11-11 A break system of an automobile

Country Status (3)

Country Link
KR (1) KR20040041469A (en)
AU (1) AU2003276762A1 (en)
WO (1) WO2004043755A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638375A1 (en) * 1986-11-11 1988-05-19 Teves Gmbh Alfred BRAKE SLIP CONTROL, HYDRAULIC VEHICLE BRAKE SYSTEM
US4938543A (en) * 1989-05-17 1990-07-03 General Motors Corporation Anti-lock braking/traction control braking system
DE4004315A1 (en) * 1990-02-13 1991-08-14 Bosch Gmbh Robert VEHICLE BRAKE SYSTEM WITH ANTI-BLOCKING DEVICE
DE4110851A1 (en) * 1991-04-04 1992-10-08 Teves Gmbh Alfred MOTOR VEHICLE BRAKE SYSTEM WITH BRAKE-SLIP AND DRIVE-SLIP-RELATED REGULATION OF THE BRAKE PRESSURE

Also Published As

Publication number Publication date
AU2003276762A1 (en) 2004-06-03
WO2004043755A1 (en) 2004-05-27

Similar Documents

Publication Publication Date Title
KR101673772B1 (en) Electro-hydraulic brake system and method for controlling the same
US20090229931A1 (en) Hydraulic vehicle brake system
JPH05236606A (en) Braking system of electric automobile
JPH01136858A (en) Control method for brake fluid pressure of hydraulic brake device of automobile
KR102417542B1 (en) ESC coordination control braking method of Electric Parking Brake
US6102490A (en) Braking system of an automobile having a variably exhausting pump unit
JPH07117644A (en) Brake system for vehicle
KR200302653Y1 (en) A break system of an automobile
US20210046915A1 (en) Two stage brake actuation system and method
KR20040041469A (en) A break system of an automobile
CN110072745B (en) Method and device for operating a motor vehicle, motor vehicle
KR200302639Y1 (en) A break system of an automobile
US6450586B1 (en) Brake control apparatus capable of preventing wheels from locking without increasing a braking time and a braking distance
US4811994A (en) Hydraulic brake system
CN113474224B (en) vehicle control device
US20030090145A1 (en) Device to control a brake arrangement and a brake system for a heavy vehicle with such a brake arrangement
KR20040039576A (en) A break system of an automobile
JP3456950B2 (en) Mechanical automatic hydraulic control for anti-lock brake system
KR20090130601A (en) Tentative holding control method for caliper typed electrical parking brake in vehicle
US3014764A (en) Anti-skid device
KR100236235B1 (en) Braking force control device by er fluid
RU2261812C2 (en) Simplified antilock brake system with sander
CN113874262B (en) brake control device
KR102465472B1 (en) Brake system and method for vehicle
KR0178944B1 (en) Anti-lock brake system

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application