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WO2017131382A1 - Switch device for electronic parking brake - Google Patents

Switch device for electronic parking brake Download PDF

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Publication number
WO2017131382A1
WO2017131382A1 PCT/KR2017/000620 KR2017000620W WO2017131382A1 WO 2017131382 A1 WO2017131382 A1 WO 2017131382A1 KR 2017000620 W KR2017000620 W KR 2017000620W WO 2017131382 A1 WO2017131382 A1 WO 2017131382A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
parking brake
magnetic sensor
response
electronic parking
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/000620
Other languages
French (fr)
Korean (ko)
Inventor
김태성
김민수
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Estra Automotive Systems Co Ltd
Original Assignee
Estra Automotive Systems Co Ltd
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 Estra Automotive Systems Co Ltd filed Critical Estra Automotive Systems Co Ltd
Publication of WO2017131382A1 publication Critical patent/WO2017131382A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60T8/17—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
    • 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
    • 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
    • B60T17/18—Safety devices; Monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere

Definitions

  • the present invention relates to a switch device for an electronic parking brake of a vehicle.
  • the electronic parking brake of the vehicle consists of a push-pull control lever installed near the driver's seat and an electrical switch connected thereto.
  • the electrical switch is configured to output signals for deactivation, actuation and release of the electronic parking brake in response to the neutral, push and pull states of the operating lever.
  • the electrical switch has a pair of terminals (brake actuation terminals and ground terminals) selectively connected according to the push and return of the operating lever, and a pair of terminals (optionally connected according to the pull and return of the operating lever). And a brake release terminal and a ground terminal), and the terminal structure implements a function of determining whether the brake is operated, released, and broken.
  • the electrical switch since the electrical switch has a structure for outputting a signal by being connected to a single main power source, if the main power source is not normal, it is impossible to determine whether the parking brake operation signal is output and whether there is a normal state. This same problem also occurs if the electrical switch is not working properly.
  • the present invention was derived to solve the above problems, the problem to be solved by the present invention is an electronic parking brake switch having a preliminary means to prevent the parking brake from operating due to the failure of the electrical switch or the main power supply. To provide a device.
  • the switch device for an electronic parking brake of a vehicle has a housing, an operating lever rotatably installed in the housing, a switching operation corresponding to the rotation of the operating lever, and the switching operation of the electronic parking brake. And a switch circuit configured to output a drive signal for actuation and deactivation, and a magnetic sensor unit configured to output a surplus drive signal for actuation and deactivation of the electronic parking brake in response to the rotation of the actuation lever.
  • the switch circuit and the magnetic sensor unit may be configured to operate by different power sources.
  • the magnetic sensor unit is a magnet installed in the housing to move in response to the rotation of the operation lever, an elastic body for providing an elastic restoring force for returning the magnet to a neutral state after the movement, and is installed in the housing and the It may include a magnetic sensor configured to output the redundant operation signal in response to the position change.
  • the elastic body may include first and second elastic parts disposed on both sides of the magnet along a moving direction of the magnet to elastically support the magnet, respectively.
  • the actuating lever may be disposed on an upper portion of the magnetic sensor unit, and the actuating lever includes a pair of magnet moving protrusions formed to extend downwardly from a lower surface of the magnetic sensor unit so that a lower end thereof is disposed on both sides of a moving direction of the magnet, respectively. can do.
  • the pair of magnet moving projections may be operable to compress the first and second elastic portions respectively in response to the rotation of the actuating lever.
  • the pair of magnet moving protrusions may be formed by chamfering portions contacting the first and second elastic parts.
  • the elastic body may further include an accommodating part accommodating the magnet, and the first and second elastic parts may be integrally formed at both sides of the accommodating part.
  • the switch device of the electronic parking brake includes not only a conventional switch circuit but also a separate magnetic sensor unit and they are driven by different power sources, the parking brake is stable even when the power source for driving the switch circuit is abnormal. Can work as
  • FIG. 1 is a perspective view of a switch device of an electronic parking brake for a vehicle according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.
  • FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1.
  • FIG 4 is a view illustrating a state in which the electronic parking brake operates in the switch device according to the embodiment of the present invention.
  • FIG 5 is a view showing a state in which the electronic parking brake is released in the switch device according to an embodiment of the present invention.
  • FIG. 6 is a view for explaining the shape of the elastic body in the switch device according to the embodiment.
  • FIG. 7 is a view showing an example of a switch circuit of the switch device according to the embodiment of the present invention.
  • a switch device of an electronic parking brake for a vehicle includes a housing 10.
  • the housing 10 may be installed near the driver's seat of the vehicle.
  • the operation lever 20 is rotatably installed in the housing 10.
  • the locking projections 11 formed on both sides of the housing 10 may be inserted into the locking groove 21 of the operating lever 20 so that the operating lever 20 and the housing 10 may be fastened to each other.
  • the actuating lever 20 is pivotably engaged within a predetermined range with respect to the central axis of the fastening protrusion 11, whereby the actuating lever 20 is moved in both directions for actuation and release of the brake. Can be rotated.
  • any one of the rotations in both directions of the actuating lever 20 may be to operate the electronic parking brake and the other may be to release the operating state of the electronic parking brake.
  • a switch circuit 30 is provided for switching operation in response to the rotation of the actuation lever 20.
  • the switch circuit 30 may be installed in the housing 10 as shown in FIGS. 2 and 3. .
  • the switch circuit 30 may be configured to output a drive signal for actuation and deactivation of the electronic parking brake by switching operation.
  • the driving signal should be interpreted as a concept including an electrical connection as well as a signal for control.
  • the switching circuit 30 may include a pair of switches 31 and 32 that operate in correspondence with rotations in both directions of the actuation lever 20, respectively. have.
  • a switch 31 is used to detect the operation of the parking brake and the normal operation of the switch (31a), the switch 31 may be composed of three pins (31a, 31b, 31c).
  • the switch 32 is to detect the parking brake release and the normal operation of the switch (31b) and the switch 32 may be composed of three pins (32a, 32b, 32c).
  • the switch circuit 30 is configured and works the same as the switch circuit of the conventional electronic parking brake, a more detailed description thereof will be omitted.
  • the one switch circuit 30 described above is configured not to implement the operation and release of the parking brake, but is configured to output a redundant operation signal separate from this. That is, the magnetic sensor unit 40 for outputting the surplus operation and release signal is provided separately from the operation and release signal of the switch circuit 30 described above.
  • the magnetic sensor unit 40 includes a magnet 41 installed in the housing 10, the housing so as to be movable in response to the rotation of the operating lever 20 of the magnet 41 It is installed at (10).
  • the upper portion of the housing 10 may be provided with a guide groove 12 in which the magnet 41 is disposed, the magnet 41 is in both directions (that is, Figure 3 In the lateral direction) is disposed in the guide groove (22).
  • the guide groove 12 is formed to be long enough to allow the movement of the magnet 41 in the longitudinal direction (left and right direction in FIG. 3) and slightly larger than the width of the magnet 41 in the width direction (left and right direction in FIG. 2). Can be formed.
  • the elastic body 42 provides an elastic restoring force for returning to the neutral state after the magnet 41 is moved by the operation lever 20. That is, when the magnet 41 is moved by the rotation of the actuating lever 20 and the external force that rotates the actuating lever 20 is removed, the magnet 41 is in a neutral state (ie, by the elastic restoring force of the elastic body 42). And the state of FIG. 3).
  • the elastic bodies 42 are disposed on both sides of the magnets 41 along the moving direction (the left and right directions in FIG. 3) of the magnets 41, respectively, so that the magnets 41 are elastically respectively.
  • the first and second elastic parts 42a and 42b may be supported.
  • the elastic body 42 may further include a receiving part 42c for receiving the magnet 41, and the first and second elastic parts 42a and 42b may be integrally formed with the receiving part 42c.
  • the elastic body 42 may be formed of a metal material having an elastic restoring force, and as shown in FIG. 6, the first and second elastic parts 42a and 42b may be formed to have a curved plate shape.
  • the elastic body may be implemented as a pair of coil springs respectively disposed on both sides of the magnet 41.
  • the actuation lever 20 may be disposed on an upper portion of the magnetic sensor unit 40, and the actuation lever 20 may have a pair of magnets for moving the magnet 41 on the lower surface thereof.
  • the moving protrusions 22 and 23 can be provided.
  • the magnet moving projections 22 and 23 may be formed extending in the downward direction from the lower surface of the actuating lever 20.
  • the magnet movement projections 22 and 23 may be configured to move the magnet 41 in direct contact with the magnet 41 and move the magnet 41 by pressing the first and second elastic parts 42a and 42b. It may also be configured to.
  • 2 and 3 illustrate a case in which the magnet moving protrusions 22 and 23 move the magnet 41 by pressing the first and second elastic parts 42a and 42b. In this case, the portions 22a and 23b of the magnet moving protrusions 22 and 23 in contact with the first and second elastic parts 42a and 42b may be chamfered.
  • the magnetic sensor unit 40 includes a magnetic sensor 44 installed in the housing 20 and configured to output a surplus operation signal for operating and releasing the electronic parking brake in response to a change in the position of the magnet 41.
  • the magnetic sensor 44 may be a Hall sensor capable of detecting the position of the magnet 41 in response to the magnetic field of the magnet 41.
  • the magnetic sensor 44 may be installed to be spaced apart from the magnet 41, and may be installed on the substrate 45 and provided in a package form.
  • the switch circuit 30 and the magnetic sensor unit 40 may be configured to operate by different power sources.
  • the switch circuit 30 and the magnetic sensor unit 40 are connected to separate power sources by separate power connection lines 60 and 70, respectively. Accordingly, even when the power supply for driving the switch circuit 30 is in an abnormal state, when the power supply of the magnetic sensor unit 40 is normally operated, the parking brake is activated and released by the surplus drive signal of the magnetic sensor unit 40. Can be done normally.
  • FIG. 3 shows a case in which the operation lever 20 is in a neutral state.
  • the center of the magnet 41 and the center line of the magnetic sensor 44 may be disposed to coincide with each other.
  • FIG. 4 and 5 show a state in which the operation lever 20 is rotated in the clockwise and counterclockwise directions, respectively.
  • 4 and 5 show a rotated state for the operation of the parking brake and the other shows a rotated state for releasing the activated parking brake.
  • FIG. 4 is a state for operating the parking brake
  • FIG. 5 is a state for releasing the parking brake.
  • the position of the magnetic sensor 44 is maintained but the second elastic portion 42b is moved by the magnet movement projection 23. While pushing to the left, the magnet 41 also moves to the left. As a result, the center of the magnet 41 is spaced to the left from the center line of the magnetic sensor 44.
  • the magnetic sensor 44 detects a change in the position of the magnet 41 and accordingly generates a redundant drive signal for actuating the parking brake.
  • the position of the magnetic sensor 44 is maintained, but the first elastic portion 42a is the magnet movement projection 22.
  • the magnet 41 also moves to the right while being pushed to the right by.
  • the center of the magnet 41 is spaced to the right from the center line of the magnetic sensor 44.
  • the magnetic sensor 44 detects a change in the position of the magnet 41 and accordingly generates a redundant drive signal for deactivating the parking brake.
  • the present invention can be used in an electronic parking brake of a vehicle, which has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

A switch device for an electronic parking brake of a vehicle comprises: a housing; an operating lever rotatably provided in the housing; a switch circuit configured to switch in response to the rotation of the operating lever and to output a driving signal in order to operate and release the electronic parking brake in response to the switching; and a magnetic sensor unit configured to output a surplus driving signal in order to operate and release the electronic parking brake in response to the rotation of the operating lever.

Description

전자식 주차 브레이크의 스위치 장치Switchgear of electronic parking brake

본 발명은 차량의 전자식 주차 브레이크의 스위치 장치에 관한 것이다.The present invention relates to a switch device for an electronic parking brake of a vehicle.

차량의 전자식 주차 브레이크는 운전석 근처에 설치된 푸쉬-풀(push-pull) 형태의 조작 레버와 이에 연결된 전기적 스위치로 구성된다.The electronic parking brake of the vehicle consists of a push-pull control lever installed near the driver's seat and an electrical switch connected thereto.

전기적 스위치는 조작 레버의 중립 상태, 푸쉬 상태 그리고 풀 상태에 대응하여 전자식 주차 브레이크의 비작동, 작동 그리고 해제를 위한 신호를 출력하도록 형성된다. 이러한 작동을 위해 전기적 스위치는 조작 레버의 푸쉬 및 복귀에 따라 선택적으로 연결되는 한 쌍의 단자(브레이크 작동 단자 및 접지 단자), 그리고 조작 레버의 풀 및 복귀에 따라 선택적으로 연결되는 한 쌍의 단자(브레이크 해제 단자 및 접지 단자)를 구비하여 구성되며, 이러한 단자 구조에 의해 브레이크의 작동, 해제 및 고장 유무를 판단하는 기능이 구현된다.The electrical switch is configured to output signals for deactivation, actuation and release of the electronic parking brake in response to the neutral, push and pull states of the operating lever. For this operation, the electrical switch has a pair of terminals (brake actuation terminals and ground terminals) selectively connected according to the push and return of the operating lever, and a pair of terminals (optionally connected according to the pull and return of the operating lever). And a brake release terminal and a ground terminal), and the terminal structure implements a function of determining whether the brake is operated, released, and broken.

이때, 이러한 전기적 스위치는 단일의 메인 전원에 연결되어 신호를 출력하는 구조를 가지기 때문에, 메인 전원이 정상적이지 않으면 주차 브레이크 작동 신호 출력 및 정상 상태 유무의 판단이 불가능하게 된다. 또한 전기적 스위치가 제대로 작동하지 않는 경우에도 이와 동일한 문제가 발생한다.At this time, since the electrical switch has a structure for outputting a signal by being connected to a single main power source, if the main power source is not normal, it is impossible to determine whether the parking brake operation signal is output and whether there is a normal state. This same problem also occurs if the electrical switch is not working properly.

본 발명은 상기한 문제점을 해결하기 위해 도출된 것으로 본 발명이 해결하고자 하는 과제는 전기적 스위치 또는 메인 전원의 고장에 의해 주차 브레이크가 작동하지 않는 것을 방지할 수 있는 예비적 수단을 가지는 전자식 주차 브레이크 스위치 장치를 제공하는 것이다.The present invention was derived to solve the above problems, the problem to be solved by the present invention is an electronic parking brake switch having a preliminary means to prevent the parking brake from operating due to the failure of the electrical switch or the main power supply. To provide a device.

본 발명의 실시예에 따른 차량의 전자식 주차 브레이크의 스위치 장치는 하우징, 상기 하우징에 회동 가능하게 설치되는 작동 레버, 상기 작동 레버의 회동에 대응하여 스위칭 작동하며 상기 스위칭 작동에 의해 상기 전자식 주차 브레이크의 작동 및 해제를 위한 구동 신호를 출력하도록 구성되는 스위치 회로, 그리고 상기 작동 레버의 회동에 대응하여 상기 전자식 주차 브레이크의 작동 및 해제를 위한 잉여 구동 신호를 출력하도록 구성되는 마그네틱 센서 유닛을 포함한다.The switch device for an electronic parking brake of a vehicle according to an embodiment of the present invention has a housing, an operating lever rotatably installed in the housing, a switching operation corresponding to the rotation of the operating lever, and the switching operation of the electronic parking brake. And a switch circuit configured to output a drive signal for actuation and deactivation, and a magnetic sensor unit configured to output a surplus drive signal for actuation and deactivation of the electronic parking brake in response to the rotation of the actuation lever.

상기 스위치 회로와 상기 마그네틱 센서 유닛은 서로 다른 전원에 의해 작동하도록 구성될 수 있다.The switch circuit and the magnetic sensor unit may be configured to operate by different power sources.

상기 마그네틱 센서 유닛은 상기 작동 레버의 회동에 대응하여 이동 가능하도록 상기 하우징에 설치되는 마그넷, 상기 마그넷이 이동 후 중립 상태로 복귀하도록 하는 탄성 복원력을 제공하는 탄성체, 그리고 상기 하우징에 설치되며 상기 마그넷의 위치 변화에 대응하여 상기 잉여 작동 신호를 출력하도록 구성되는 마그네틱 센서를 포함할 수 있다.The magnetic sensor unit is a magnet installed in the housing to move in response to the rotation of the operation lever, an elastic body for providing an elastic restoring force for returning the magnet to a neutral state after the movement, and is installed in the housing and the It may include a magnetic sensor configured to output the redundant operation signal in response to the position change.

상기 탄성체는 상기 마그넷의 이동 방향을 따라 상기 마그넷의 양측에 배치되어 상기 마그넷을 각각 탄성적으로 지지하는 제1 및 제2 탄성부를 포함할 수 있다.The elastic body may include first and second elastic parts disposed on both sides of the magnet along a moving direction of the magnet to elastically support the magnet, respectively.

상기 작동 레버는 상기 마그네틱 센서 유닛의 상부에 배치될 수 있으며, 상기 작동 레버는 하면에서 아래 방향으로 각각 연장되어 하단이 상기 마그넷의 이동 방향 양측에 각각 배치되도록 형성되는 한 쌍의 마그넷 이동 돌기를 포함할 수 있다.The actuating lever may be disposed on an upper portion of the magnetic sensor unit, and the actuating lever includes a pair of magnet moving protrusions formed to extend downwardly from a lower surface of the magnetic sensor unit so that a lower end thereof is disposed on both sides of a moving direction of the magnet, respectively. can do.

상기 한 쌍의 마그넷 이동 돌기는 상기 작동 레버의 회동에 대응하여 상기 제1 및 제2 탄성부를 각각 압축시키도록 작동할 수 있다.The pair of magnet moving projections may be operable to compress the first and second elastic portions respectively in response to the rotation of the actuating lever.

상기 한 쌍의 마그넷 이동 돌기는 상기 제1 및 제2 탄성부와 접촉하는 부분이 모따기되어 형성될 수 있다.The pair of magnet moving protrusions may be formed by chamfering portions contacting the first and second elastic parts.

상기 탄성체는 상기 마그넷을 수용하는 수용부를 더 포함할 수 있고, 상기 제1 및 제2 탄성부는 상기 수용부의 양측에 일체로 형성될 수 있다.The elastic body may further include an accommodating part accommodating the magnet, and the first and second elastic parts may be integrally formed at both sides of the accommodating part.

본 발명에 의하면, 전자식 주차 브레이크의 스위치 장치가 기존의 스위치 회로뿐만 아니라 별도의 마그네틱 센서 유닛을 포함하고 이들이 서로 다른 전원에 의해 구동되기 때문에, 스위치 회로를 구동하는 전원이 비정상적인 경우에도 주차 브레이크가 안정적으로 작동할 수 있다.According to the present invention, since the switch device of the electronic parking brake includes not only a conventional switch circuit but also a separate magnetic sensor unit and they are driven by different power sources, the parking brake is stable even when the power source for driving the switch circuit is abnormal. Can work as

도 1은 본 발명의 실시예에 따른 차량용 전자식 주차 브레이크의 스위치 장치의 사시도이다.1 is a perspective view of a switch device of an electronic parking brake for a vehicle according to an embodiment of the present invention.

도 2는 도 1의 Ⅱ-Ⅱ선을 따라 절개한 단면도이다.FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.

도 3은 도 1의 Ⅲ-Ⅲ선을 따라 절개한 단면도이다.3 is a cross-sectional view taken along the line III-III of FIG. 1.

도 4는 본 발명의 실시예에 따른 스위치 장치에서 전자식 주차 브레이크가 작동되는 상태를 보여주는 도면이다.4 is a view illustrating a state in which the electronic parking brake operates in the switch device according to the embodiment of the present invention.

도 5는 본 발명의 실시예에 따른 스위치 장치에서 전자식 주차 브레이크가 해제되는 상태를 보여주는 도면이다.5 is a view showing a state in which the electronic parking brake is released in the switch device according to an embodiment of the present invention.

도 6은 실시예에 따른 스위치 장치에서 탄성체의 형상을 설명하기 위한 도면이다.6 is a view for explaining the shape of the elastic body in the switch device according to the embodiment.

도 7은 본 발명의 실시예에 따른 스위치 장치의 스위치 회로의 한 예를 보여주는 도면이다.7 is a view showing an example of a switch circuit of the switch device according to the embodiment of the present invention.

이하에서 첨부된 도면을 참조하여 본 발명의 실시예에 대해 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

도 1을 참조하면, 본 발명의 실시예에 따른 차량용 전자식 주차 브레이크의 스위치 장치는 하우징(10)을 포함한다. 하우징(10)은 차량의 운전석 근처에 설치될 수 있다.Referring to FIG. 1, a switch device of an electronic parking brake for a vehicle according to an exemplary embodiment of the present invention includes a housing 10. The housing 10 may be installed near the driver's seat of the vehicle.

작동 레버(20)는 하우징(10)에 회동 가능하게 설치된다. 예를 들어, 하우징(10)의 양 측면에 형성된 체결 돌기(11)가 작동 레버(20)의 체결 홈(21)에 삽입됨으로써 작동 레버(20)와 하우징(10)이 서로 체결될 수 있다. 이때, 작동 레버(20)가 체결 돌기(11)의 중심 축을 기준으로 일정 범위 내에서 피봇팅(pivoting) 가능하게 체결되고, 그에 의해 작동 레버(20)는 브레이크의 작동 및 해제를 위해 양 방향으로 회동될 수 있다. 예를 들어, 작동 레버(20)의 양 방향의 회동 중 어느 하나는 전자식 주차 브레이크를 작동하도록 하는 것이고 다른 하나는 전자식 주차 브레이크의 작동 상태를 해제하기 위한 것일 수 있다.The operation lever 20 is rotatably installed in the housing 10. For example, the locking projections 11 formed on both sides of the housing 10 may be inserted into the locking groove 21 of the operating lever 20 so that the operating lever 20 and the housing 10 may be fastened to each other. At this time, the actuating lever 20 is pivotably engaged within a predetermined range with respect to the central axis of the fastening protrusion 11, whereby the actuating lever 20 is moved in both directions for actuation and release of the brake. Can be rotated. For example, any one of the rotations in both directions of the actuating lever 20 may be to operate the electronic parking brake and the other may be to release the operating state of the electronic parking brake.

작동 레버(20)의 회동에 대응하여 스위칭 작동하는 스위치 회로(30)가 구비되며, 예를 들어 스위치 회로(30)는 도 2 및 도 3에 도시된 바와 같이 하우징(10) 내에 설치될 수 있다.A switch circuit 30 is provided for switching operation in response to the rotation of the actuation lever 20. For example, the switch circuit 30 may be installed in the housing 10 as shown in FIGS. 2 and 3. .

스위치 회로(30)는 스위칭 작동에 의해 전자식 주차 브레이크의 작동 및 해제를 위한 구동 신호를 출력하도록 구성될 수 있다. 여기서 구동 신호는 제어를 위한 신호뿐만 아니라 전기적 연결을 포함하는 개념으로 해석되어야 한다. 예를 들어, 도 7에 예시적으로 도시된 바와 같이, 스위칭 회로(30)는 작동 레버(20)의 양 방향의 회동에 각각 대응하여 작동하는 한 쌍의 스위치(31, 32)를 포함할 수 있다. 도면부호 31의 스위치는 주차 브레이크의 작동과 스위치의 정상 작동 여부를 감지(31a)하며 스위치(31)는 세 개의 핀(31a, 31b, 31c)으로 구성될 수 있다. 이때, 도면부호 31b의 핀을 통하여 주차 브레이크 스위치가 작동하였는지를 검출할 수 있으며, 나머지 두 개의 핀(31a, 31c)은 주차 브레이크 작동 요소와 전원에 연결될 수 있다. 작동 레버(20)가 주차 브레이크 작동을 위한 방향으로 회동하는 경우 전원에 연결된 두 개의 핀(31a, 31c)이 서로 연결되고 이에 의해 주차 브레이크가 작동하도록 할 수 있다. 주차 브레이크가 작동하지 않는 상태에서는 도면부호 31a의 핀과 접지 핀(31b)이 서로 연결되는 상태를 유지한다. 한편, 도면부호 32의 스위치는 주차 브레이크 해제와 스위치 정상 작동 여부를 감지(31b)하며 스위치(32)는 세 개의 핀(32a, 32b, 32c)으로 구성될 수 있다. 이때, 도면부호 32b의 핀을 통하여 주차 브레이크 스위치가 해제 방향으로 작동하였는지를 검출할 수 있으며, 나머지 두 개의 핀(32a, 32c)은 주차 브레이크 해제 요소와 전원에 연결될 수 있다. 이때, 도면 부호 31c의 핀과 도면부호 32c의 핀은 공통일 수 있다. 작동 레버(20)가 주차 브레이크 작동의 해제를 위한 방향으로 회동하는 경우 전원에 연결된 두 개의 핀(32a, 32c)이 서로 연결되고 이에 의해 주차 브레이크의 작동이 해제되도록 할 수 있다. 주차 브레이크의 작동이 해제된 후에는 도면부호 32a의 핀과 접지 핀(32b)가 서로 연결되는 상태를 유지한다. 스위치 회로(30)는 종래의 전자식 주차 브레이크의 스위치 회로와 동일하게 구성되고 동일하게 작동하므로, 이에 대한 더욱 상세한 설명은 생략한다.The switch circuit 30 may be configured to output a drive signal for actuation and deactivation of the electronic parking brake by switching operation. Here, the driving signal should be interpreted as a concept including an electrical connection as well as a signal for control. For example, as exemplarily shown in FIG. 7, the switching circuit 30 may include a pair of switches 31 and 32 that operate in correspondence with rotations in both directions of the actuation lever 20, respectively. have. A switch 31 is used to detect the operation of the parking brake and the normal operation of the switch (31a), the switch 31 may be composed of three pins (31a, 31b, 31c). At this time, it is possible to detect whether the parking brake switch is operated through the pin 31b, and the remaining two pins 31a and 31c may be connected to the parking brake operating element and a power source. When the operating lever 20 rotates in the direction for parking brake operation, two pins 31a and 31c connected to a power source may be connected to each other, thereby enabling the parking brake to operate. In the state in which the parking brake is not operated, the pin 31a and the ground pin 31b remain connected to each other. On the other hand, the switch 32 is to detect the parking brake release and the normal operation of the switch (31b) and the switch 32 may be composed of three pins (32a, 32b, 32c). At this time, it is possible to detect whether the parking brake switch is operated in the release direction through the pin 32b, and the remaining two pins 32a and 32c may be connected to the parking brake release element and the power source. In this case, the pin 31c and the pin 32c may be common. When the operating lever 20 rotates in the direction for releasing the parking brake operation, two pins 32a and 32c connected to the power source may be connected to each other, thereby enabling the parking brake to be released. After the parking brake is released, the pin 32a and the ground pin 32b remain connected to each other. Since the switch circuit 30 is configured and works the same as the switch circuit of the conventional electronic parking brake, a more detailed description thereof will be omitted.

한편, 본 발명의 실시예에서는, 위에서 설명된 하나의 스위치 회로(30)로 주차 브레이크의 작동 및 해제를 구현하는 것이 아니라, 이와 별도의 잉여의 작동 신호를 출력하도록 구성되는 것이다. 즉, 상기한 스위치 회로(30)의 작동 및 해제 신호와는 별도로, 잉여 작동 및 해제 신호를 출력하는 마그네틱 센서 유닛(40)이 구비된다.On the other hand, in the embodiment of the present invention, the one switch circuit 30 described above is configured not to implement the operation and release of the parking brake, but is configured to output a redundant operation signal separate from this. That is, the magnetic sensor unit 40 for outputting the surplus operation and release signal is provided separately from the operation and release signal of the switch circuit 30 described above.

이하에서 첨부된 도 2 내지 도 5를 참조하여 마그네틱 센서 유닛(40)의 구조 및 작동에 대해 설명한다.Hereinafter, the structure and operation of the magnetic sensor unit 40 will be described with reference to FIGS. 2 to 5.

도 2 및 도 3을 참조하면, 마그네틱 센서 유닛(40)은 하우징(10)에 설치되는 마그넷(41)을 포함하며, 마그넷(41)의 작동 레버(20)의 회동에 대응하여 이동 가능하도록 하우징(10)에 설치된다. 이때, 도 2 및 도 3에 도시된 바와 같이, 하우징(10)의 상부에는 마그넷(41)이 배치되는 가이드 홈(12)이 구비될 수 있으며, 마그넷(41)은 양 방향(즉, 도 3에서 좌우 방향)으로 이동 가능한 상태로 가이드 홈(22)에 배치된다. 가이드 홈(12)은 길이 방향(도 3에서 좌우 방향)으로는 마그넷(41)의 이동이 가능하도록 길게 형성되며 폭 방향(도 2에서 좌우 방향)으로는 마그넷(41)의 폭보다 조금 크도록 형성될 수 있다.2 and 3, the magnetic sensor unit 40 includes a magnet 41 installed in the housing 10, the housing so as to be movable in response to the rotation of the operating lever 20 of the magnet 41 It is installed at (10). At this time, as shown in Figures 2 and 3, the upper portion of the housing 10 may be provided with a guide groove 12 in which the magnet 41 is disposed, the magnet 41 is in both directions (that is, Figure 3 In the lateral direction) is disposed in the guide groove (22). The guide groove 12 is formed to be long enough to allow the movement of the magnet 41 in the longitudinal direction (left and right direction in FIG. 3) and slightly larger than the width of the magnet 41 in the width direction (left and right direction in FIG. 2). Can be formed.

탄성체(42)는 마그넷(41)이 작동 레버(20)에 의해 이동된 후 중립 상태로 복귀하도록 하는 탄성 복원력을 제공한다. 즉, 마그넷(41)이 작동 레버(20)의 회동에 의해 이동된 후 작동 레버(20)를 회동시킨 외력이 제거되는 경우 마그넷(41)은 탄성체(42)의 탄성 복원력에 의해 중립 상태(즉, 도 3의 상태)로 복귀하게 된다.The elastic body 42 provides an elastic restoring force for returning to the neutral state after the magnet 41 is moved by the operation lever 20. That is, when the magnet 41 is moved by the rotation of the actuating lever 20 and the external force that rotates the actuating lever 20 is removed, the magnet 41 is in a neutral state (ie, by the elastic restoring force of the elastic body 42). And the state of FIG. 3).

이때, 도 6에 도시된 바와 같이, 탄성체(42)는 마그넷(41)의 이동 방향(도 3에서 좌우 방향)을 따라 마그넷(41)의 양측에 각각 배치되어 마그넷(41)을 각각 탄성적으로 지지하는 제1 및 제2 탄성부(42a, 42b)를 포함할 수 있다. 그리고 탄성체(42)는 마그넷(41)을 수용하는 수용부(42c)를 더 포함할 수 있으며, 제1 및 제2 탄성부(42a, 42b)는 수용부(42c)와 일체로 형성될 수 있다. 이때, 탄성체(42)는 탄성 복원력을 가지는 금속 재질로 형성될 수 있으며, 도 6에 도시된 바와 같이, 제1 및 제2 탄성부(42a, 42b)는 굴곡진 판 형태를 갖도록 형성될 수 있다. 한편, 다른 실시예에서는, 탄성체는 마그넷(41)의 양측에 각각 배치되는 한 쌍의 코일 스프링으로 구현될 수도 있다.In this case, as shown in FIG. 6, the elastic bodies 42 are disposed on both sides of the magnets 41 along the moving direction (the left and right directions in FIG. 3) of the magnets 41, respectively, so that the magnets 41 are elastically respectively. The first and second elastic parts 42a and 42b may be supported. The elastic body 42 may further include a receiving part 42c for receiving the magnet 41, and the first and second elastic parts 42a and 42b may be integrally formed with the receiving part 42c. . In this case, the elastic body 42 may be formed of a metal material having an elastic restoring force, and as shown in FIG. 6, the first and second elastic parts 42a and 42b may be formed to have a curved plate shape. . On the other hand, in another embodiment, the elastic body may be implemented as a pair of coil springs respectively disposed on both sides of the magnet 41.

도 2 및 도 3을 참조하면, 작동 레버(20)는 마그네틱 센서 유닛(40)의 상부에 배치될 수 있으며, 작동 레버(20)는 그 하면에 마그넷(41)을 이동시키기 위한 한 쌍의 마그넷 이동 돌기(22, 23)를 구비할 수 있다. 도면에 도시된 바와 같이, 마그넷 이동 돌기(22, 23)는 작동 레버(20)의 하면에서 아래 방향으로 연장되어 형성될 수 있다. 마그넷 이동 돌기(22, 23)는 마그넷(41)에 직접 접촉하여 마그넷(41)을 이동시키도록 구성될 수도 있고 제1 및 제2 탄성부(42a, 42b)를 가압하여 마그넷(41)을 이동시키도록 구성될 수도 있다. 도 2 및 도 3에 도시된 것은 마그넷 이동 돌기(22, 23)가 제1 및 제2 탄성부(42a, 42b)를 가압하여 마그넷(41)을 이동시키는 경우이다. 이때, 제1 및 제2 탄성부(42a, 42b)와 접촉하는 마그넷 이동 돌기(22, 23)의 부분(22a, 23b)은 모따기되어 형성될 수 있다.Referring to FIGS. 2 and 3, the actuation lever 20 may be disposed on an upper portion of the magnetic sensor unit 40, and the actuation lever 20 may have a pair of magnets for moving the magnet 41 on the lower surface thereof. The moving protrusions 22 and 23 can be provided. As shown in the figure, the magnet moving projections 22 and 23 may be formed extending in the downward direction from the lower surface of the actuating lever 20. The magnet movement projections 22 and 23 may be configured to move the magnet 41 in direct contact with the magnet 41 and move the magnet 41 by pressing the first and second elastic parts 42a and 42b. It may also be configured to. 2 and 3 illustrate a case in which the magnet moving protrusions 22 and 23 move the magnet 41 by pressing the first and second elastic parts 42a and 42b. In this case, the portions 22a and 23b of the magnet moving protrusions 22 and 23 in contact with the first and second elastic parts 42a and 42b may be chamfered.

한편, 마그네틱 센서 유닛(40)은 하우징(20)에 설치되어 마그넷(41)의 위치 변화에 대응하여 전자식 주차 브레이크의 작동 및 해제를 위한 잉여 작동 신호를 출력하도록 구성되는 마그네틱 센서(44)를 포함한다. 예를 들어, 마그네틱 센서(44)는 마그넷(41)의 자기장에 반응하여 마그넷(41)의 위치를 감지할 수 있는 홀 센서(Hall sensor)일 수 있다. 이때, 도 2 및 도 3을 참조하면, 마그네틱 센서(44)는 마그넷(41)으로부터 이격되도록 설치될 수 있으며, 기판(45) 상에 설치되어 패키지 형태로 구비될 수 있다.Meanwhile, the magnetic sensor unit 40 includes a magnetic sensor 44 installed in the housing 20 and configured to output a surplus operation signal for operating and releasing the electronic parking brake in response to a change in the position of the magnet 41. do. For example, the magnetic sensor 44 may be a Hall sensor capable of detecting the position of the magnet 41 in response to the magnetic field of the magnet 41. In this case, referring to FIGS. 2 and 3, the magnetic sensor 44 may be installed to be spaced apart from the magnet 41, and may be installed on the substrate 45 and provided in a package form.

이때, 스위치 회로(30)와 마그네틱 센서 유닛(40)은 서로 다른 별도의 전원에 의해 작동하도록 구성될 수 있다. 도 2를 참조하면, 스위치 회로(30)와 마그네틱 센서 유닛(40)은 별도의 전원 연결선(60, 70)에 의해 각각 별도의 전원에 연결된다. 이에 의해, 스위치 회로(30)를 구동하기 위한 전원이 비정상인 상태에 있더라도, 마그네틱 센서 유닛(40)의 전원이 정상적으로 작동하면 마그네틱 센서 유닛(40)의 잉여 구동 신호에 의해 주차 브레이크의 작동 및 해제가 정상적으로 이루어질 수 있다.In this case, the switch circuit 30 and the magnetic sensor unit 40 may be configured to operate by different power sources. 2, the switch circuit 30 and the magnetic sensor unit 40 are connected to separate power sources by separate power connection lines 60 and 70, respectively. Accordingly, even when the power supply for driving the switch circuit 30 is in an abnormal state, when the power supply of the magnetic sensor unit 40 is normally operated, the parking brake is activated and released by the surplus drive signal of the magnetic sensor unit 40. Can be done normally.

도 3 내지 도 4를 참조하여 마그네틱 센서 유닛(40)의 작동에 대해 좀 더 구체적으로 설명하면 다음과 같다.The operation of the magnetic sensor unit 40 will be described in more detail with reference to FIGS. 3 to 4 as follows.

먼저, 도 3은 작동 레버(20)가 중립 상태인 경우를 보여주면, 이때 마그넷(41)의 중심과 마그네틱 센서(44)의 중심선이 서로 일치하는 상태로 배치될 수 있다.First, FIG. 3 shows a case in which the operation lever 20 is in a neutral state. In this case, the center of the magnet 41 and the center line of the magnetic sensor 44 may be disposed to coincide with each other.

한편, 도 4 및 도 5는 도 3의 상태에서 작동 레버(20)가 시계 방향 및 반시계 방향으로 각각 회동된 상태를 보여준다. 도 4 및 도 5 중 어느 하나는 주차 브레이크의 작동을 위해 회동된 상태를 보여주고 나머지 하나는 작동된 주차 브레이크의 해제를 위해 회동된 상태를 보여준다. 이하에서, 설명의 편의상 도 4를 주차 브레이크의 작동을 위한 상태라고 하고 도 5를 주차 브레이크의 해제를 위해 상태라고 가정한다.4 and 5 show a state in which the operation lever 20 is rotated in the clockwise and counterclockwise directions, respectively. 4 and 5 show a rotated state for the operation of the parking brake and the other shows a rotated state for releasing the activated parking brake. Hereinafter, for convenience of description, it is assumed that FIG. 4 is a state for operating the parking brake and FIG. 5 is a state for releasing the parking brake.

먼저, 조작자가 주차 브레이크를 작동시키기 위해 작동 레버(20)를 도 4의 상태로 회동시키면, 마그네틱 센서(44)의 위치는 유지되나 제2 탄성부(42b)가 마그넷 이동 돌기(23)에 의해 좌측으로 밀리면서 마그넷(41)도 좌측으로 이동하게 된다. 그 결과 마그넷(41)의 중심이 마그네틱 센서(44)의 중심선으로부터 좌측으로 이격된다. 마그네틱 센서(44)는 마그넷(41)의 위치 변화를 감지하고 그에 따라 주차 브레이크를 작동시키기 위한 잉여 구동 신호를 생성한다.First, when the operator rotates the operation lever 20 to the state of FIG. 4 to operate the parking brake, the position of the magnetic sensor 44 is maintained but the second elastic portion 42b is moved by the magnet movement projection 23. While pushing to the left, the magnet 41 also moves to the left. As a result, the center of the magnet 41 is spaced to the left from the center line of the magnetic sensor 44. The magnetic sensor 44 detects a change in the position of the magnet 41 and accordingly generates a redundant drive signal for actuating the parking brake.

한편, 조작자가 주차 브레이크의 작동을 해제시키기 위해 작동 레버(20)를 도 5의 상태로 회동시키면, 마그네틱 센서(44)의 위치는 유지되나 제1 탄성부(42a)가 마그넷 이동 돌기(22)에 의해 우측으로 밀리면서 마그넷(41)도 우측으로 이동하게 된다. 그 결과 마그넷(41)의 중심이 마그네틱 센서(44)의 중심선으로부터 우측으로 이격된다. 마그네틱 센서(44)는 마그넷(41)의 위치 변화를 감지하고 그에 따라 주차 브레이크의 작동을 해제시키기 위한 잉여 구동 신호를 생성한다.On the other hand, when the operator rotates the operation lever 20 to the state of FIG. 5 to release the operation of the parking brake, the position of the magnetic sensor 44 is maintained, but the first elastic portion 42a is the magnet movement projection 22. The magnet 41 also moves to the right while being pushed to the right by. As a result, the center of the magnet 41 is spaced to the right from the center line of the magnetic sensor 44. The magnetic sensor 44 detects a change in the position of the magnet 41 and accordingly generates a redundant drive signal for deactivating the parking brake.

이상에서 본 발명의 실시예를 설명하였으나, 본 발명의 권리범위는 이에 한정되지 아니하며 본 발명의 실시예로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 용이하게 변경되어 균등한 것으로 인정되는 범위의 모든 변경 및 수정을 포함한다.Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it is recognized that the present invention is easily changed and equivalent by those skilled in the art to which the present invention pertains. Includes all changes and modifications to the scope of the matter.

본 발명은 차량의 전자식 주차 브레이크에 사용될 수 있어 산업상 이용가능성이 있다.The present invention can be used in an electronic parking brake of a vehicle, which has industrial applicability.

Claims (8)

차량의 전자식 주차 브레이크의 스위치 장치로서,As a switch device for an electronic parking brake of a vehicle, 하우징,housing, 상기 하우징에 회동 가능하게 설치되는 작동 레버,An operating lever rotatably installed in the housing; 상기 작동 레버의 회동에 대응하여 스위칭 작동하며 상기 스위칭 작동에 의해 상기 전자식 주차 브레이크의 작동 및 해제를 위한 구동 신호를 출력하도록 구성되는 스위치 회로, 그리고A switching circuit configured to switch in response to the rotation of the operating lever and to output a driving signal for actuating and releasing the electronic parking brake by the switching operation; and 상기 작동 레버의 회동에 대응하여 상기 전자식 주차 브레이크의 작동 및 해제를 위한 잉여 구동 신호를 출력하도록 구성되는 마그네틱 센서 유닛을 포함하는 스위치 장치.And a magnetic sensor unit configured to output a surplus drive signal for actuating and releasing the electronic parking brake in response to rotation of the actuating lever. 제1항에서,In claim 1, 상기 스위치 회로와 상기 마그네틱 센서 유닛은 서로 다른 전원에 의해 작동하도록 구성되는 스위치 장치.And the switch circuit and the magnetic sensor unit are configured to operate by different power sources. 제1항에서,In claim 1, 상기 마그네틱 센서 유닛은The magnetic sensor unit 상기 작동 레버의 회동에 대응하여 이동 가능하도록 상기 하우징에 설치되는 마그넷,A magnet installed in the housing to be movable in response to the rotation of the operation lever; 상기 마그넷이 이동 후 중립 상태로 복귀하도록 하는 탄성 복원력을 제공하는 탄성체, 그리고An elastic body providing elastic restoring force for returning the magnet to a neutral state after the movement; 상기 하우징에 설치되며 상기 마그넷의 위치 변화에 대응하여 상기 잉여 작동 신호를 출력하도록 구성되는 마그네틱 센서를 포함하는 스위치 장치.And a magnetic sensor installed in the housing and configured to output the redundant operation signal in response to a change in position of the magnet. 제3항에서,In claim 3, 상기 탄성체는 상기 마그넷의 이동 방향을 따라 상기 마그넷의 양측에 배치되어 상기 마그넷을 각각 탄성적으로 지지하는 제1 및 제2 탄성부를 포함하는 스위치 장치.The elastic body is a switch device including a first and a second elastic portion disposed on both sides of the magnet in the moving direction of the magnet to elastically support the magnet, respectively. 제4항에서,In claim 4, 상기 작동 레버는 상기 마그네틱 센서 유닛의 상부에 배치되며,The operation lever is disposed above the magnetic sensor unit, 상기 작동 레버는 하면에서 아래 방향으로 각각 연장되어 하단이 상기 마그넷의 이동 방향 양측에 각각 배치되도록 형성되는 한 쌍의 마그넷 이동 돌기를 포함하는 스위치 장치.The actuating lever includes a pair of magnet moving projections extending from the lower surface in the downward direction, respectively, the lower end is arranged on both sides of the movement direction of the magnet. 제5항에서,In claim 5, 상기 한 쌍의 마그넷 이동 돌기는 상기 작동 레버의 회동에 대응하여 상기 제1 및 제2 탄성부를 각각 압축시키도록 작동하는 스위치 장치.And the pair of magnet moving projections operate to compress the first and second elastic portions respectively in response to the rotation of the actuating lever. 제6항에서,In claim 6, 상기 한 쌍의 마그넷 이동 돌기는 상기 제1 및 제2 탄성부와 접촉하는 부분이 모따기되어 형성되는 스위치 장치.The pair of magnet moving protrusions are formed by chamfering the contact portion with the first and second elastic portion. 제6항에서,In claim 6, 상기 탄성체는 상기 마그넷을 수용하는 수용부를 더 포함하고,The elastic body further includes a receiving portion for receiving the magnet, 상기 제1 및 제2 탄성부는 상기 수용부의 양측에 일체로 형성되는 스위치 장치.And the first and second elastic parts are integrally formed at both sides of the accommodation part.
PCT/KR2017/000620 2016-01-25 2017-01-18 Switch device for electronic parking brake Ceased WO2017131382A1 (en)

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KR1020160008666A KR101717088B1 (en) 2016-01-25 2016-01-25 Switch device for electric parking brake
KR10-2016-0008666 2016-01-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980001578A (en) * 1996-06-20 1998-03-30 박병재 Brake actuation control
KR20010059227A (en) * 1999-12-30 2001-07-06 이계안 Magnetic parking brake system
KR20080087472A (en) * 2007-03-27 2008-10-01 주식회사 만도 Electronic parking brake system
KR20110130248A (en) * 2010-05-27 2011-12-05 주식회사 신창전기 Electronic parking brake switch
KR20130032821A (en) * 2011-09-23 2013-04-02 박기웅 Sensor for actuating a vehicle warning signal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100761424B1 (en) 2006-07-07 2007-09-27 대성전기공업 주식회사 Electronic parking brake switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980001578A (en) * 1996-06-20 1998-03-30 박병재 Brake actuation control
KR20010059227A (en) * 1999-12-30 2001-07-06 이계안 Magnetic parking brake system
KR20080087472A (en) * 2007-03-27 2008-10-01 주식회사 만도 Electronic parking brake system
KR20110130248A (en) * 2010-05-27 2011-12-05 주식회사 신창전기 Electronic parking brake switch
KR20130032821A (en) * 2011-09-23 2013-04-02 박기웅 Sensor for actuating a vehicle warning signal

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