KR20090101556A - Master cylinder of brake for vehicles - Google Patents

Master cylinder of brake for vehicles

Info

Publication number
KR20090101556A
KR20090101556A KR1020080026746A KR20080026746A KR20090101556A KR 20090101556 A KR20090101556 A KR 20090101556A KR 1020080026746 A KR1020080026746 A KR 1020080026746A KR 20080026746 A KR20080026746 A KR 20080026746A KR 20090101556 A KR20090101556 A KR 20090101556A
Authority
KR
South Korea
Prior art keywords
brake
cylinder body
master cylinder
vehicle
cylinder
Prior art date
Application number
KR1020080026746A
Other languages
Korean (ko)
Inventor
강동구
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020080026746A priority Critical patent/KR20090101556A/en
Publication of KR20090101556A publication Critical patent/KR20090101556A/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
    • 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
    • B60T13/12—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 the fluid being liquid
    • B60T13/14—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 the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/145—Master cylinder integrated or hydraulically coupled with booster
    • 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
    • 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
    • B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum booster 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
    • 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
    • B60T13/748—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 electro-magnetic brakes
    • 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
    • B60Y2400/301—Sensors for position or displacement
    • B60Y2400/3012—Sensors for position or displacement using Hall effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

PURPOSE: A master cylinder of a vehicle brake is provided to simplify the structure of a brake pedal by removing a brake switch by integrally forming a pedal detection sensor with the master cylinder. CONSTITUTION: A master cylinder(600) of a vehicle brake includes a cylinder body(610), a first piston, a second piston, and a spring. The cylinder body is connected to a booster generating the boosting power. The first and second pistons are installed in the cylinder body, are moved by the power which is transmitted from the booster, and transfers hydraulic pressure toward a wheel of a vehicle. The spring is installed in the cylinder body, and is compressed by the movement of the first and second pistons. The cylinder body includes a hall sensor(800). The hall sensor controls the lighting of a brake lamp by sensing the relative motion of the spring.

Description

차량용 브레이크의 마스터 실린더{Master cylinder of brake for vehicles}Master cylinder of brakes for vehicles

본 발명은 마스터 실린더에 관한 것으로, 더욱 상세하게는 전자 유압 제동장치에 사용되는 페달감지센서를 포함하는 마스터 실린더에 관한 것이다.The present invention relates to a master cylinder, and more particularly, to a master cylinder including a pedal detection sensor used in the electro-hydraulic braking device.

일반적으로 차량의 브레이크 시스템은 액압을 발생시키는 마스터 실린더를 구비하고, 이 마스터 실린더는 액압을 발생시키기 위한 여러가지 부품을 포함한다.BACKGROUND In general, a brake system of a vehicle includes a master cylinder for generating hydraulic pressure, which includes various components for generating hydraulic pressure.

브레이크장치의 마스터 실린더는 실린더 내부의 피스톤이 왕복운동을 하며 실린더 내부에 채워진 작동유체를 가압함으로써 제동유압을 발생시키는 장치로, 통상 배력장치의 전면에 장착되어 배력장치의 출력축이 피스톤을 밀어줄 때 제동유압이 생성되도록 되어 있다. 또한, 전자 유압 제동장치는 운전자의 제동의지를 판단하여 적절한 브레이크 반력을 생성하도록 제어하는 장치이다. The master cylinder of the brake system is a device that generates braking hydraulic pressure by reciprocating the piston inside the cylinder and pressurizing the working fluid filled in the cylinder.It is usually mounted on the front of the hydraulic power unit and the output shaft of the hydraulic power unit pushes the piston. The braking hydraulic pressure is generated. In addition, the electro-hydraulic braking device is a device for controlling to generate an appropriate brake reaction force by determining the braking intention of the driver.

종래의 페달감지센서는 한국 공개특허 1999-0080954호에 개시된 바와 같이, 브레이크 페달의 회전축에 연결되어 있었다. 즉, 브레이크 페달의 회전축이 회전함에 따라 같이 회전하는 제1 기어와, 제1 기어의 회전에 따라서 제1 기어에 대하여 소정의 회전비로 회전하는 제2 기어와, 제2 기어에 연결되어 제2 기어와 같이 회전을 하는 자기 발생부 및 이 자기 발생부와 소정 간격 이격되어 마련되며 자기 발생부가 회전함에 따라서 변화하는 자장의 변화를 감지하여 전압신호를 출력하는 자기 감지부를 포함하여 사용자의 답력이 직접 가해지는 브레이크 페달에 마련되어 있다. 또한 차량의 전방에 브레이크 램프를 설치하여 비보호 좌회전시와 같이 전방에서 달려오는 차량이 브레이크를 작동시키는지 용이하게 확인할 수 있도록 한 차량의 브레이크 램프장치는 야간에 주행하거나 정지하고 있을 때 차량의 존재를 뒤 차량에 알려주어 안전 거리의 미확보 등으로 인한 차량의 접촉사고를 사전에 막아 주는 역활을 하는 장치이다. 일반적으로 브레이크 램프장치는 차량이 후면에 장착되는 한 쌍의 브레이크 램프와, 한 쌍의 브레이크 램프에 전기적으로 연결됨과 아울러 브레이크 페달의 가압시 작동되는 브레이크 스위치와, 브레이크 스위치의 작동시 브레이크 램프에 전기를 공급하는 밧데리를 포함하여 이루어진다.The conventional pedal sensor has been connected to the rotating shaft of the brake pedal, as disclosed in Korean Patent Laid-Open Publication No. 1999-0080954. That is, the first gear that rotates together as the rotary shaft of the brake pedal rotates, the second gear that rotates at a predetermined rotational ratio with respect to the first gear according to the rotation of the first gear, and the second gear connected to the second gear As shown in FIG. 1, the magnetic generating unit rotates as described above and is spaced apart from the magnetic generating unit at a predetermined interval, and the magnetic sensing unit detects a change in the magnetic field that changes as the magnetic generating unit rotates and outputs a voltage signal. Loss is provided on the brake pedal. In addition, the brake lamp device of the vehicle is installed in front of the vehicle so that the vehicle can easily check whether the vehicle running in front of the vehicle, such as in an unprotected left turn, operates the brake. It is a device that prevents contact accidents due to the inability to secure the safety distance by informing the vehicle behind. Generally, a brake lamp device is electrically connected to a pair of brake lamps in which the vehicle is mounted on the rear, a pair of brake lamps electrically connected to the pair of brake lamps, and a brake switch operated when the brake pedal is pressed, and a brake lamp when the brake switch is operated. It consists of a battery that supplies it.

종래의 페달감지센서는 상기와 같이 많은 구성요소들을 반드시 구비해야 함으로써 브레이크 페달의 설치공간을 크게 필요로 하는 문제점이 있다. 또한 종래의 페달감지센서는 많은 구성요소들로 인해 구성이 복잡하여 조립성이 상대적으로 떨어질 뿐만 아니라, 잦은 브레이크 페달 작동에 의해 페달감지센서가 파손되는 문제점이 있었다. 또한 종래의 페달감지센서는 브레이크 페달을 밟는 수평운동을 회전운동으로 전환한 후 회전체에 의한 자기장의 변화를 감지하는 방식으로서 여러단계의 에너지 변환과정을 거치게 되므로 브레이크 페달의 운동량을 정확히 얻기 어려운 문제점이 있었다.The conventional pedal sensor has a problem that requires a large space for the installation of the brake pedal by having a large number of components as described above. In addition, the conventional pedal detection sensor has a complex configuration due to many components, as well as relatively inferior assembly, there is a problem that the pedal detection sensor is damaged by frequent brake pedal operation. In addition, the conventional pedal sensor is a way to detect the change in the magnetic field by the rotating body after switching the horizontal movement step on the brake pedal to the rotary motion, it is difficult to accurately obtain the momentum of the brake pedal because it undergoes a multi-step energy conversion process There was this.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 페달감지센서를 마스터 실린더와 일체로 형성함으로써 브레이크 스위치를 제거하여 브레이크 페달의 구조를 단순화할 수 있도록 하는 마스터 실린더를 제공하는 것을 목적으로 한다. 또한 본 발명은 브레이크 페달과 연계된 피스톤의 단순한 수평변위의 변화만으로 브레이크 페달의 정확한 운동량을 얻을 수 있도록 하는 마스터 실린더를 제공하는 데 있다.The present invention is to solve the above problems, an object of the present invention is to provide a master cylinder to simplify the structure of the brake pedal by removing the brake switch by integrally forming the pedal sensor with the master cylinder. In addition, the present invention is to provide a master cylinder that can obtain a precise momentum of the brake pedal by simply changing the horizontal displacement of the piston associated with the brake pedal.

본 발명에 따른 차량용 브레이크의 마스터 실린더는 배력을 생성하는 배력장치와 연결된 실린더 몸체와, 실린더 몸체에 내장되어 배력장치에서 전달된 힘에 의하여 운동되면서 차량의 휠측으로 유압을 전달하는 제1,2 피스톤, 실린더 몸체에 내장되어 제1,2 피스톤이 전진함에 따라 압축하는 스프링을 포함하는 차량용 브레이크의 마스터 실린더에서, 실린더 몸체는 스프링의 상대운동을 감지하여 브레이크 램프의 점등을 제어하는 홀 센서를 포함하는 것을 특징으로 한다.The master cylinder of the brake for a vehicle according to the present invention includes a cylinder body connected to a boosting device for generating a boosting force, and a first and a second piston which transmits hydraulic pressure to the wheel side of the vehicle while being moved by the force transmitted from the boosting device. In the master cylinder of the vehicle brake including a spring which is embedded in the cylinder body and compresses as the first and second pistons advance, the cylinder body includes a hall sensor for controlling the lighting of the brake lamp by sensing the relative movement of the spring. It is characterized by.

여기서, 홀 센서는 상기 실린더 몸체에 일체로 형성되는 것을 특징으로 한다.Here, the hall sensor is characterized in that it is formed integrally with the cylinder body.

본 발명에 따른 마스터 실린더는 브레이크 페달의 구조를 단순화할 수 있도록 하며, 브레이크 페달과 연계된 피스톤의 단순한 수평변위의 변화만으로 브레이크 페달의 정확한 운동량을 얻을 수 있도록 하는 효과가 있다.The master cylinder according to the present invention can simplify the structure of the brake pedal and has the effect of obtaining an accurate momentum of the brake pedal by simply changing the horizontal displacement of the piston associated with the brake pedal.

도 1은 본 발명에 따른 마스터 실린더를 나타낸 측면도이다.1 is a side view showing a master cylinder according to the present invention.

도 2는 본 발명의 요부를 나타낸 평면도이다.2 is a plan view showing the main parts of the present invention.

<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>

500...배력장치 510...전방 셀500 ... Power 510 ... Front Cell

520...후방 셀 600...마스터 실린더520 ... rear cell 600 ... master cylinder

610...실린더 몸체 700...오일탱크610 cylinder body 700 oil tank

800...홀 센서800 ... hall sensor

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 2에 도시된 바와 같이, 본 발명에 따른 마스터 실린더(600)는 밀폐된 공간을 형성하는 전,후방 셀(510,520)을 가지며 브레이크 페달 측과 연결된 연결된 배력장치(500)와 결합된다. 상기 전,후방 셀(510,520)에는 그 공간을 구획하는 다이어프램(530)의 중앙부에는 밸브몸체(540)가 설치되는데, 상기 밸브몸체(540)의 내부에는 전방셀(510) 측으로는 출력로드(550)가 마련되고 후방 셀(520) 측으로는 플런저(560)가 내장된다. 그리고 브레이크 페달 측과 일측이 연결된 입력로드(570)의 타측이 플런저(560)와 연결되게 마련된다. 상기 전방 셀(510) 측의 밸브몸체(540) 내주면에는 상기 플런저(560)와 접촉되는 포펫밸브가 마련된다.As shown in FIG. 2, the master cylinder 600 according to the present invention has a front and rear cells 510 and 520 which form a closed space, and is coupled with a power supply device 500 connected to the brake pedal side. The front and rear cells 510 and 520 are provided with a valve body 540 at the central portion of the diaphragm 530 that partitions the space, and the output rod 550 toward the front cell 510 inside the valve body 540. ) Is provided and a plunger 560 is built into the rear cell 520. The other side of the input rod 570 to which the brake pedal side and one side are connected is provided to be connected to the plunger 560. A poppet valve in contact with the plunger 560 is provided on the inner circumferential surface of the valve body 540 on the front cell 510 side.

브레이크 페달에 외력이 가하면 입력로드(570)와 플런저(560) 및 출력로드(550)가 전방 셀 측으로 전진된다. 그리고 플런저(560)와 포펫밸브 사이에는 틈이 발생되고, 이 틈 사이로 공기가 부압실로 유입된다. 그러면 부압실과 진공실과의 압력차에 의하여 다이어프램(530)이 진공실 측으로 이동되면서 밸브몸체(540)도 이동시킨다. 그러면 출력로드(550)는 전방 셀(510) 측으로 더욱 전진되는 것이다.When an external force is applied to the brake pedal, the input rod 570, the plunger 560, and the output rod 550 are advanced to the front cell side. A gap is generated between the plunger 560 and the poppet valve, and air is introduced into the negative pressure chamber between the gaps. Then, the diaphragm 530 is moved to the vacuum chamber side by the pressure difference between the negative pressure chamber and the vacuum chamber to move the valve body 540. The output rod 550 is then further advanced to the front cell 510 side.

상기 전방 셀(510)에는 상기 출력로드(550)와 연결되는 마스터 실린더(600)가 결합된다. 상기 마스터 실린더(600)는 전방셀(510)에 결합된 실린더 몸체(610)와 실린더 몸체(610)에 내장되어 상기 출력로드(550)와 연결된 제1피스톤(620)과 제1피스톤(620)과 동일하게 운동되는 제2피스톤(630)을 가진다. 즉, 출력로드(550)가 전진되면서 제1피스톤(620)과 제2피스톤(630)이 전진되면서 실린더 몸체(610)와 연통된 오일탱크(700)에서 공급되는 오일을 전, 후륜 측으로 각각 전달한다. 상기 제1피스톤(620)과 제2피스톤(630) 사이에는 제1스프링(640)이 탄지되고, 실린더 몸체(610)와 제2피스톤(630) 사이에는 제2스프링(640)이 탄지된다. 상기 제1,2스프링(640)은 브레이크 페달에 가해진 외력이 제거되었을 때, 제1,2 피스톤(620,630)을 최초의 상태로 복귀시키는 스프링이다.The front cylinder 510 is coupled to the master cylinder 600 is connected to the output rod 550. The master cylinder 600 is embedded in the cylinder body 610 and the cylinder body 610 coupled to the front cell 510 and the first piston 620 and the first piston 620 connected to the output rod 550. It has a second piston 630 which is the same as the movement. That is, as the output rod 550 is advanced, the first piston 620 and the second piston 630 are advanced, and the oil supplied from the oil tank 700 communicating with the cylinder body 610 is transferred to the front and rear wheels, respectively. do. The first spring 640 is supported between the first piston 620 and the second piston 630, and the second spring 640 is supported between the cylinder body 610 and the second piston 630. The first and second springs 640 are springs that return the first and second pistons 620 and 630 to their initial state when the external force applied to the brake pedal is removed.

도 2에 도시된 바와 같이, 본 발명에 따른 마스터 실린더(600)는 실린더 몸체(610)에 홀 센서(800)를 포함하여 구성된다. 앞서 설명한 바와 같이, 제1피스톤(620)과 제2피스톤(630)이 전진하게 되면 제 1 및 제2 스프링(640)이 압축에 따라 홀 센서(800)에서 자속에 따른 변위를 읽어 브레이크 작동 램프의 기능을 수행하게 된다. 브레이크 작동에 따른 스프링(640)과 홀 센서(800)의 상대운동 변화에 따른 자속 변화를 전류로 출력하여 브레이크 램프의 기능을 하게 된다. 즉, 마스터 실린더(600)에 일체로 형성된 홀 센서가 앞 차량이 브레이크 페달을 밟았을 때 뒤 차량에 앞 차량의 제동을 알리는 램프의 점등을 제어하는 역활을 하는 것이다.As shown in FIG. 2, the master cylinder 600 according to the present invention includes a hall sensor 800 in the cylinder body 610. As described above, when the first piston 620 and the second piston 630 advance, the first and second springs 640 read the displacement of the Hall sensor 800 according to the magnetic flux in response to the compression, and thus the brake actuation lamp. Will perform the function of. The function of the brake lamp is output by outputting a change in magnetic flux according to a change in relative movement of the spring 640 and the hall sensor 800 according to the brake operation. That is, the hall sensor formed integrally with the master cylinder 600 serves to control the lighting of the lamp for informing the braking of the front vehicle to the rear vehicle when the front vehicle presses the brake pedal.

따라서 마스터 실린더(600)에 형성된 홀 센서(800)가 자속의 변화를 감지하면, 브레이크 제어부를 경유하여 차량의 전.후미에 위치되는 브레이크 램프가 온/오프 된다. 이러한 브레이크 제어부는 전기적인 제어유닛(ECU)이며, 홀 센서(800)의 신호가 입력된다. 따라서 브레이크 램프는 홀 센서(800)의 신호에 따라 브레이크 제어부에서 작동 신호가 출력되어 점등되는 것이다.Therefore, when the Hall sensor 800 formed in the master cylinder 600 detects a change in magnetic flux, the brake lamps located at the front and rear of the vehicle are turned on / off via the brake control unit. The brake control unit is an electrical control unit (ECU), and a signal from the hall sensor 800 is input. Therefore, the brake lamp is turned on by outputting an operation signal from the brake controller according to the signal of the hall sensor 800.

Claims (2)

배력을 생성하는 배력장치와 연결된 실린더 몸체와, 상기 실린더 몸체에 내장되어 배력장치에서 전달된 힘에 의하여 운동되면서 차량의 휠측으로 유압을 전달하는 제1,2 피스톤, 상기 실린더 몸체에 내장되어 제1,2 피스톤이 전진함에 따라 압축하는 스프링을 포함하는 차량용 브레이크의 마스터 실린더에 있어서,A cylinder body connected to a booster generating power, a first and second pistons mounted on the cylinder body to transfer hydraulic pressure to a wheel side of the vehicle while being moved by the force transmitted from the booster, and built into the cylinder body. In the master cylinder of a vehicle brake comprising a spring that compresses as two pistons advance, 상기 실린더 몸체는 상기 스프링의 상대운동을 감지하여 브레이크 램프의 점등을 제어하는 홀 센서를 포함하는 것을 특징으로 하는 차량용 브레이크의 마스터 실린더.The cylinder body is a master cylinder of a vehicle brake, characterized in that it comprises a Hall sensor for controlling the lighting of the brake lamp by detecting the relative movement of the spring. 제1항에 있어서,The method of claim 1, 상기 홀 센서는 상기 실린더 몸체에 일체로 형성되는 것을 특징으로 하는 차량용 브레이크의 마스터 실린더.The hall sensor is a master cylinder of a vehicle brake, characterized in that formed integrally with the cylinder body.
KR1020080026746A 2008-03-24 2008-03-24 Master cylinder of brake for vehicles KR20090101556A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302617B1 (en) * 2011-10-07 2013-09-03 주식회사 만도 Master cylinder
KR101447165B1 (en) * 2014-03-03 2014-10-10 한국델파이주식회사 Brake light sensor module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302617B1 (en) * 2011-10-07 2013-09-03 주식회사 만도 Master cylinder
KR101447165B1 (en) * 2014-03-03 2014-10-10 한국델파이주식회사 Brake light sensor module
WO2015133764A1 (en) * 2014-03-03 2015-09-11 한국델파이주식회사 Brake light sensor module
US10173587B2 (en) 2014-03-03 2019-01-08 Erae Ams Co., Ltd. Brake light sensor module

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