KR20080023559A - Vehicle mastering cylinder - Google Patents

Vehicle mastering cylinder Download PDF

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Publication number
KR20080023559A
KR20080023559A KR1020060087590A KR20060087590A KR20080023559A KR 20080023559 A KR20080023559 A KR 20080023559A KR 1020060087590 A KR1020060087590 A KR 1020060087590A KR 20060087590 A KR20060087590 A KR 20060087590A KR 20080023559 A KR20080023559 A KR 20080023559A
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South Korea
Prior art keywords
auxiliary chamber
chambers
piston
master cylinder
vehicle
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KR1020060087590A
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Korean (ko)
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박상식
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현대자동차주식회사
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Priority to KR1020060087590A priority Critical patent/KR20080023559A/en
Publication of KR20080023559A publication Critical patent/KR20080023559A/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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/26—Reservoirs
    • 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
    • B60T17/06—Applications or arrangements of reservoirs
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

A master cylinder for a vehicle is provided to improve the braking performance and the braking comfort by reducing an initial stroke and improving responsibility. A master cylinder for a vehicle comprises an auxiliary chamber(100) and a main chamber(200). The auxiliary chamber includes a first piston(110), which reciprocates in an auxiliary chamber body(101) by an operation of a brake pedal, a supply hole(120) formed on the outer side of the auxiliary chamber body, and an exhausting hole(130) spaced apart from the supply hole in a front direction. The supply hole allows oil to be supplied from a reservoir(10) to the auxiliary chamber body. The exhausting hole allows the oil to move according to an operation of the first piston. The main chamber includes first and second compensation holes(210,212) formed on the first and second chambers(201,202), respectively, first and second discharging holes(222) formed at first sides of the first and second chambers, respectively, and second and third pistons(240, 242) provided at rear sides of first and second springs(230,232) supported in the first and second chambers.

Description

차량용 마스터 실린더{Vehicle mastering cylinder}Vehicle master cylinder {Vehicle mastering cylinder}

도 1은 본 발명에 의한 차량용 마스터 실린더를 도시한 도면.1 is a view showing a vehicle master cylinder according to the present invention.

도 2a 내지 도 2b는 본 발명에 의한 차량용 마스터 실린더의 작동 상태도.2a to 2b is an operating state diagram of a vehicle master cylinder according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

100 : 보조챔버부 110 : 제1 피스톤100: auxiliary chamber 110: first piston

120 : 공급홀 130 : 토출홀120: supply hole 130: discharge hole

200 : 메인 챔버부 201,202 : 제1,2 챔버200: main chamber portion 201,202: first and second chamber

210,212 : 제1,2 보상홀 220,222 : 제1,2 유출홀210,212: First and second compensation holes 220,222: First and second outflow holes

230,232 : 제1,2 스프링 240, 242 : 제1,2 피스톤230,232: 1st, 2nd spring 240, 242: 1st, 2nd piston

본 발명은 초기 스트로크(stroke)를 단축하여 응답성을 향상시키면서도 답력 측면에서도 유리한 차량용 마스터 실린더에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle master cylinder which is advantageous in terms of effort while reducing response time and improving responsiveness.

일반적으로 자동차의 유압제동장치는 리저버에서 공급되는 오일을 마스터 실린더에서 가압하여 액압을 발생시켜 브레이크 유압라인을 통해 각 휠로 전달하고 각 휠 내부의 브레이크 슈 또는 디스크를 브레이크 드럼의 내면에 밀착되게 밀어주Generally, hydraulic brake system of automobile pressurizes oil supplied from reservoir to generate hydraulic pressure and delivers hydraulic pressure to each wheel through brake hydraulic line, and pushes brake shoes or disk inside each wheel to closely contact inner surface of brake drum.

어 마찰력에 의한 제동력을 발생시키는 것으로, 크게 휠과 일체로 회전하는 휠내부의 브레이크 드럼내에 2개의 브레이크슈가 브레이크 드럼의 내면과 맞닿아서 마찰력에 의한 제동토크(제동력)를 발생시키는 방식인 드럼식 유압 브레이크와, 드럼 대신 휠과 회전되는 원판형의 브레이크 디스크를 양쪽에서 강하게 압박하여 제동토크를 발생시키는 디스크식 유압 브레이크가 사용된다.The hydraulic pressure is a drum-type hydraulic pressure that generates braking torque (braking force) caused by friction by generating two brake shoes in contact with the inner surface of the brake drum. Instead of the drum, a disk-type hydraulic brake is used which generates a braking torque by strongly pressing the wheel and the disk-shaped brake disk rotated on both sides.

상기한 유압 브레이크는 리저버 내부에 충진된 오일을 이용하여 운전자의 브레이크 페달 조작에 따라 차량 제동이 가능하도록 캘리퍼의 휠 실린더에 리저버에 충진된 오일을 공급 가능하게 하는 마스터 실린더가 구비된다.The hydraulic brake is provided with a master cylinder for supplying the oil filled in the reservoir to the wheel cylinder of the caliper to enable the vehicle braking according to the driver's brake pedal operation using the oil filled in the reservoir.

상기한 마스터 실린더에 작용하는 작용력 즉, 답력은 상기한 마스터 실린더의 지경이 작은 것이 유리하고, 스트로크의 측면에서 살펴보면 마스터 실린더의 직경이 큰 것이 유리하나 이러한 조건을 만족시킬 수 있는 마스터 실린더가 아직까지는 개발 되지 않고 있는 실정이다.The acting force acting on the master cylinder, that is, the stepping force, is advantageous in that the diameter of the master cylinder is small, and when viewed in terms of the stroke, the diameter of the master cylinder is advantageous, but the master cylinder that can satisfy these conditions is still present. It is not developed.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 운전자가 브레이크 페달 조작시에 초기 스트로크를 단축시켜 응답성을 향상 시키면서도 답력 측면에서도 유리한 차량용 마스터 실린더를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a master cylinder for a vehicle, which is advantageous in terms of effort while improving the responsiveness by shortening an initial stroke when a driver operates a brake pedal.

상기한 목적을 달성하기 위한 본 발명에 의한 차량용 마스터 실린더는 운전자의 브레이크 페달 조작에 연동하여 작동 가능하도록 보조챔버 바디의 내부를 따라 밀착되어 왕복 운동하는 제1 피스톤, 상기 보조챔버 바디의 외측에 관통 형성되 며 리저버에 충진된 오일이 보조챔버 바디의 내부로 공급 가능하도록 구비된 공급홀, 상기 공급홀의 전방으로 이격되어 위치하며 상기 제1 피스톤의 작동에 의해 오일이 이동되는 토출홀을 포함하는 보조챔버부; 및 상기 보조챔버부의 전방에 설치되며 토출홀을 통해 공급된 오일이 내부로 공급 가능하도록 제1,2 챔버에 형성된 제1,2 보상홀, 상기 제1,2 보상홀을 통해 공급된 오일이 휠 실린더로 이동 가능하도록 상기 제1,2 챔버의 일측에 연통 형성된 제1,2 유출홀, 상기 제1,2 챔버의 내측에 양단이 각각 탄지되는 제2,3 피스톤의 후방에 각각 제1,2 피스톤이 구비된 메인 챔버부를 포함하여 구성된다.The vehicle master cylinder according to the present invention for achieving the above object is a first piston that is in close contact with the inside of the auxiliary chamber body to operate in conjunction with the driver's brake pedal operation, penetrates to the outside of the auxiliary chamber body The auxiliary chamber is formed and provided with a supply hole so that the oil filled in the reservoir can be supplied to the interior of the auxiliary chamber body, spaced apart in front of the supply hole and the discharge hole for moving the oil by the operation of the first piston part; And first and second compensation holes formed in the first and second chambers so that the oil supplied through the discharge hole is supplied to the inside of the auxiliary chamber, and the oil supplied through the first and second compensation holes is wheeled. First and second outlet holes formed in communication with one side of the first and second chambers so as to be movable to the cylinder, and first and second rear ends of the second and third pistons whose both ends are respectively supported inside the first and second chambers. It is configured to include a main chamber provided with a piston.

상기 보조챔버부는 메인 챔버부의 직경보다 큰 직경을 갖도록 형성된다.The auxiliary chamber portion is formed to have a diameter larger than the diameter of the main chamber portion.

상기와 같이 구성되는 본 발명에 의한 차량용 마스터 실린더의 실시예를 도면을 참조하여 설명한다.An embodiment of a vehicle master cylinder according to the present invention configured as described above will be described with reference to the drawings.

첨부된 도 1은 본 발명에 의한 차량용 마스터 실린더를 도시한 도면이고, 도 2a 내지 도 2b는 본 발명에 의한 차량용 마스터 실린더의 작동 상태도이다.1 is a view showing a vehicle master cylinder according to the present invention, Figures 2a to 2b is an operating state of the vehicle master cylinder according to the present invention.

첨부되 도 1 내지 도 2b를 참조하면, 운전자의 브레이크 페달(미도시) 조작에 연동하여 작동 가능하도록 보조챔버 바디(101)의 내부를 따라 밀착되어 왕복 운동하는 제1 피스톤(110)과, 상기 보조챔버 바디(101)의 외측에 관통 형성되며 리저버(10)에 충진된 오일이 보조챔버 바디(101)의 내부로 공급 가능하도록 구비된 공급홀(120)과, 상기 공급홀(120)의 전방으로 이격되어 위치하며 상기 제1 피스톤(110)의 작동에 의해 오일이 이동되는 토출홀(120)을 포함하는 보조챔버부(100); 및 상기 보조챔버부(100)의 전방에 설치되며 토출홀(120)을 통해 공급된 오일이 내 부로 공급 가능하도록 제1,2 챔버(201.202)에 형성된 제1,2 보상홀(210,212), 상기 제1,2 보상홀(210,212)을 통해 공급된 오일이 휠 실린더로 이동 가능하도록 상기 제1,2 챔버(201,202)의 일측에 연통 형성된 제1,2 유출홀(220,222), 상기 제1,2 챔버(201,202)의 내측에 양단이 각각 탄지되는 제1,2 스프링(230,232)의 후방에 각각 제2,3 피스톤(240,242)이 구비된 메인 챔버부(200)를 포함하여 구성된다.1 to 2B, the first piston 110 is in close contact with the inside of the auxiliary chamber body 101 to be operable in conjunction with a driver's operation of a brake pedal (not shown), and the A supply hole 120 formed through the outer side of the auxiliary chamber body 101 and provided so that oil filled in the reservoir 10 can be supplied into the auxiliary chamber body 101, and the front of the supply hole 120. An auxiliary chamber part 100 spaced apart from each other and including a discharge hole 120 in which oil is moved by the operation of the first piston 110; And first and second compensation holes 210 and 212 installed in the first and second chambers 201 and 202 so that the oil supplied through the discharge hole 120 can be supplied to the inside of the auxiliary chamber part 100. First and second outlet holes 220 and 222 communicating with one side of the first and second chambers 201 and 202 so that the oil supplied through the first and second compensation holes 210 and 212 may move to the wheel cylinders. The main chamber part 200 is provided with the second and third pistons 240 and 242, respectively, behind the first and second springs 230 and 232 which both ends of the chambers 201 and 202 are supported.

상기 보조챔버부(100)는 메인 챔버부(200)의 직경보다 큰 직경을 갖도록 형성된다. 즉, 상기 메인 챔버부(200)의 직경을 d라고 했을 때 상기 보조챔버부(100)의 직경은 D의 직경을 갖도록 이루어지는 것이 바람직한다. 왜냐하면, 상기 보조챔버부(100)의 직경이 크게 형성된 만큼 동일 스트로크에 의해 토출홀(120)을 통해 메인챔버부(200)로 공급되는 오일의 양이 증가 되기 때문이다.The auxiliary chamber part 100 is formed to have a diameter larger than the diameter of the main chamber part 200. That is, when the diameter of the main chamber 200 is d, the diameter of the auxiliary chamber 100 is preferably made to have a diameter of D. This is because the amount of oil supplied to the main chamber part 200 through the discharge hole 120 is increased by the same stroke as the diameter of the auxiliary chamber part 100 is large.

상기와 같이 구성되는 본 발명에 의한 차량용 마스터 실린더의 작동 상태를 도면을 참조하여 설명한다.The operation state of the vehicle master cylinder according to the present invention configured as described above will be described with reference to the drawings.

첨부된 도 1 내지 도 2a를 참조하면, 차량이 도로를 따라 주행하다가 운전자에 의해 브레이크 페달이 작동되면서 보조챔버부(100)에 구비된 제1 피스톤(110)이 일 방향으로 이동되되 바람직하게는 화살표 방향으로 제1 피스톤(110)이 이동되면서 공급홀(120)을 막게된다. 상기 공급홀(120)의 위치까지 이동된 제1 피스톤(110)에 의해 가압된 오일은 토출홀(130)을 통해 메인챔버부(200)의 제1,2 챔버(201,202)의 제1,2 보상홀(210,212)로 공급된다. 이때 공급되는 오일량은 상기 보조챔버부(100)의 직경 D와 제1 피스톤(110)에 의해 이동된 길이에 해당되는 오일이 제1,2 챔버(201,202)의 내부로 공급된다. 1 to 2A, while the vehicle travels along the road, the brake pedal is operated by the driver to move the first piston 110 provided in the auxiliary chamber part 100 in one direction. The first piston 110 moves in the direction of the arrow to block the supply hole 120. The oil pressurized by the first piston 110 moved to the position of the supply hole 120 is the first and second of the first and second chambers 201 and 202 of the main chamber part 200 through the discharge hole 130. Supply to the compensation holes (210,212). At this time, the amount of oil supplied corresponds to the diameter D of the auxiliary chamber part 100 and the length corresponding to the length moved by the first piston 110, and is supplied into the first and second chambers 201 and 202.

이로 인해, 디스크 패드의 켈리퍼 접촉면의 각 공극을 빨리 메꾸게 되어 초기 응답성이 향상되며 제동 구간의 스트로크도 짧아지게 된다.As a result, each gap of the caliper contact surface of the disk pad is quickly filled, so that the initial response is improved and the stroke of the braking section is shortened.

첨부된 도 2b를 참조하면, 상기 제 1 피스톤(110)이 보조챔버부(100)의 내측을 따라 계속해서 이동하여 토출홀(130)이 형성된 곳까지 이동하면서 상기 제1 피스톤(110)이 토출홀(130)을 막기 전까지는 잔압이 걸려있는 상태이므로 초기 제동감(응답성 및 스트로크)에는 영향을 주지 않게 된다.Referring to FIG. 2B, the first piston 110 is discharged while the first piston 110 continuously moves along the inner side of the auxiliary chamber part 100 to the place where the discharge hole 130 is formed. Since the residual pressure is applied until the hole 130 is blocked, the initial braking feeling (responsiveness and stroke) is not affected.

상기와 같이 작동되다가 토출홀(130)이 제1 피스톤(110)에 의해 막히게 되면 제1,2 챔버(201,202)의 제1,2 보상홀(210,212)이 제2,3 피스톤(2140,242)에 의해 막히게 되어 제1,2 토출홀(220,222)를 통해 배출된 오일이 휠 실린더로 공급되어 차량의 정지가 이루어진다.When the discharge hole 130 is blocked by the first piston 110 while operating as described above, the first and second compensation holes 210 and 212 of the first and second chambers 201 and 202 are the second and third pistons 2140 and 242. It is blocked by the oil is discharged through the first and second discharge holes (220, 222) is supplied to the wheel cylinder to stop the vehicle.

한편, 본 발명은 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다. On the other hand, the present invention can be variously modified by those skilled in the art without departing from the gist of the invention.

이상에서 설명한 바와 같이, 본 발명에 따른 차량용 마스터 실린더는 초기 스트로크를 단축 및 응답성 향상으로 제동성능 및 제동감을 증대 시킬 수 있는 효과가 있다. 또한, 유압 발생시 답력이 축소되는 효과가 있다.As described above, the vehicle master cylinder according to the present invention has the effect of increasing the braking performance and the braking feeling by shortening the initial stroke and improving the response. In addition, there is an effect that the pedaling force is reduced when the hydraulic pressure is generated.

Claims (2)

차량에 구비되는 마스터 실린더에 있어서,In the master cylinder provided in the vehicle, 운전자의 브레이크 페달 조작에 연동하여 작동 가능하도록 보조챔버 바디의 내부를 따라 밀착되어 왕복 운동하는 제1 피스톤, 상기 보조챔버 바디의 외측에 관통 형성되며 리저버에 충진된 오일이 보조챔버 바디의 내부로 공급 가능하도록 구비된 공급홀, 상기 공급홀의 전방으로 이격되어 위치하며 상기 제1 피스톤의 작동에 의해 오일이 이동되는 토출홀을 포함하는 보조챔버부; 및The first piston is in close contact with the inside of the subchamber body to be operatively linked to the driver's brake pedal operation, and is formed through the outside of the subchamber body and oil filled in the reservoir is supplied into the subchamber body. An auxiliary chamber part disposed to be spaced apart from the front of the supply hole and configured to include a discharge hole in which oil is moved by the operation of the first piston; And 상기 보조챔버부의 전방에 설치되며 토출홀을 통해 공급된 오일이 내부로 공급 가능하도록 제1,2 챔버에 형성된 제1,2 보상홀, 상기 제1,2 보상홀을 통해 공급된 오일이 휠 실린더로 이동 가능하도록 상기 제1,2 챔버의 일측에 연통 형성된 제1,2 유출홀, 상기 제1,2 챔버의 내측에 양단이 각각 탄지되는 제1,2 스프링의 후방에 각각 제2,3 피스톤이 구비된 메인 챔버부를 포함하여 구성되는 것을 특징으로 하는 차량용 마스터 실린더.A first and second compensation holes formed in the first and second chambers so that the oil supplied through the discharge hole is supplied to the inside of the auxiliary chamber, and the oil supplied through the first and second compensation holes is wheel cylinder. First and second outflow holes communicating with one side of the first and second chambers so as to be movable in the first and second chambers; Vehicle master cylinder, characterized in that it comprises a main chamber provided. 제 1항에 있어서,The method of claim 1, 상기 보조챔버부는 메인 챔버부의 직경보다 큰 직경을 갖는 것을 특징으로 하는 차량용 마스터 실린더.And the auxiliary chamber part has a diameter larger than the diameter of the main chamber part.
KR1020060087590A 2006-09-11 2006-09-11 Vehicle mastering cylinder KR20080023559A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150057647A (en) 2013-11-20 2015-05-28 현대모비스 주식회사 Initializing method for position of piston in electric booster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150057647A (en) 2013-11-20 2015-05-28 현대모비스 주식회사 Initializing method for position of piston in electric booster

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