WO2014003274A1 - Electrically-powered parking brake apparatus for mid-size and large commercial vehicles - Google Patents

Electrically-powered parking brake apparatus for mid-size and large commercial vehicles Download PDF

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Publication number
WO2014003274A1
WO2014003274A1 PCT/KR2012/011803 KR2012011803W WO2014003274A1 WO 2014003274 A1 WO2014003274 A1 WO 2014003274A1 KR 2012011803 W KR2012011803 W KR 2012011803W WO 2014003274 A1 WO2014003274 A1 WO 2014003274A1
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WO
WIPO (PCT)
Prior art keywords
motor
parking brake
large commercial
spring
mid
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PCT/KR2012/011803
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French (fr)
Korean (ko)
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임주생
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주식회사 미래브이씨
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Publication of WO2014003274A1 publication Critical patent/WO2014003274A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—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
    • B60T13/746—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 and mechanical transmission of the braking action
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/107—Disposition of hand control with electrical power assistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • F16D2121/06—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure for releasing a normally applied brake

Definitions

  • the present invention relates to an electric parking brake device for a medium-large commercial vehicle, and more particularly, to a motorized parking brake device for a medium-large commercial vehicle of a new method for generating a parking stroke by driving the motor during the operation of the parking brake of the medium-large commercial vehicle.
  • Pneumatic brake systems such as air brakes have long been used to control the running and stopping of medium and large commercial vehicle vehicles, especially large vehicles such as heavy trucks and buses.
  • air brakes are required to be more sensitive and quick to brake operation due to the weight of the cargo, and to have a substantially strong braking force.
  • the key component of an air brake system is a brake chamber that uses air pressure to produce a stroke of 64 mm, for example with a force of 1800 kgf.
  • FIG. 1 and 2 are cross-sectional views illustrating an operation state of a spring type parking brake device according to an exemplary embodiment, wherein the parking brake device includes a spring chamber 11 and a service chamber 12 respectively disposed at upper and lower portions thereof. It consists of.
  • the spring chamber 11 is installed in the chamber and the power spring 13 to generate an operating force for operating the vehicle brake by the elastic restoring force, and the power spring 13 in a way that is bent upward by the air pressure
  • the first chamber diaphragm 14 to compress, the piston 16 is installed on the upper surface of the first diaphragm 14 to transmit the compressive force to the power spring 13, and the spring chamber through the holes of the partition wall (10) 11) and a first push rod 17 which is moved up and down in the axial direction between the service chamber 12.
  • the upper end of the power spring 13 is guided by a spring guide 22 installed inside the upper end of the spring chamber 11 during compression, and the lower end of the power spring 13 is seated and supported by the flange of the piston 16. do.
  • the first spring 19 is installed between the first diaphragm 14 and the partition wall 10, and the first diaphragm 14 is elastically supported by the first spring 19.
  • the service chamber 12 is connected to the second diaphragm 15 and the second diaphragm 15 which are bent and deformed in the vertical direction by the force of the air pressure or the first push rod 17, and the service chamber 12
  • the second push rod 18 drawn out through the lower through-hole of the bottom plate, the end of the second push rod 18 and the vehicle brake operating mechanism, and the vehicle brake according to the lifting operation of the second push rod 18. It comprises a clavis 21 for activating and deactivating.
  • the second spring 20 is installed between the connecting plate of the second push rod 18 and the lower end of the service chamber 12, the second diaphragm 15 is elastically supported by the second spring (20) do. Looking at the operating state of the brake actuator by such a configuration as follows.
  • compressed air is introduced into the spring chamber 11 when the brake is released or during normal driving.
  • the edge of the first diaphragm 14 is bent upward by the pressure of the compressed air introduced into the spring chamber 11, and the power spring 13 is compressed by the air pressure transmitted through the piston 16.
  • the first push rod 17 connected to the first diaphragm 14 is inserted and moved into the spring chamber 11.
  • the second diaphragm 15 is bent upward by the elastic restoring force of the second spring 20, and the second push rod 18 is the service chamber 12.
  • the vehicle brake is inserted and moved inward and released by the clavis 21 connected to the second push rod 18.
  • the power spring 13 When the brake is operated, the power spring 13 is released as the air pressure applied to the power spring 13 is released through the first diaphragm 14 and the piston 16 while the air inside the spring chamber 11 is discharged to the outside. It is expanded by elastic restoring force. Subsequently, while the edge portion of the first diaphragm 14 is bent downward by the elastic restoring force of the power spring 13, the first push rod 17 is moved downward, and thus the second diaphragm ( The edge of 15 is bent and deformed downward by the pressing force from the first push rod 17.
  • the vehicle brake is operated by the clavis 21 connected to the lower end of the second push rod 18. Let's do it.
  • the present invention has been invented to solve the above problems, by implementing a stroke (parking braking force) for the brake operation by the electric motor through the application of a motor, a reducer and a linear module instead of a mechanical using a conventional power spring,
  • An object of the present invention is to provide an electric parking brake device for a medium-large commercial vehicle that can solve the existing problems.
  • an electric parking brake device for a medium-large commercial vehicle includes a motor for providing a driving force; A speed reducer for reducing the speed of the motor; And a linear module for converting the rotational motion of the reduced motor into a linear motion to generate a stroke of the parking brake for a medium-large commercial vehicle.
  • the linear module may be coupled to the reducer; A rotating screw connected through the coupling to rotate at a reduced speed; And a nut part engaged with the rotary screw to move up and down, and generate a stroke displacement for the operation of the parking brake by the lifting operation of the nut part.
  • the motor, reducer, and linear module can realize a stroke of a predetermined length (reciprocating travel distance) from mechanical to electric, and do not need the power spring and diaphragm built in the existing spring chamber, so that the coil spring of high load In this way, it is possible to improve the problems such as the failure loss and the presence of lateral force during operation, limiting the endurance life and exposure to the risk of human accidents due to the arbitrary disassembly during breakdown of the brake chamber.
  • FIG. 1 and 2 are cross-sectional views showing the operating state of the spring type parking brake device according to an embodiment of the prior art
  • FIG 3 is a front view of the electric parking brake device for a medium-large commercial vehicle according to an embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of FIG.
  • FIG. 3 is a front view of the electric parking brake device for a medium-large commercial vehicle according to an embodiment of the present invention
  • Figure 4 is an exploded perspective view of FIG.
  • the present invention is a mechanical method of operating the parking brake using the conventional compressed air and power spring to change the electric motor to operate the parking brake by using the motor 11 and the linear module, the durability of the existing high tension spring
  • the present invention relates to an electric parking brake system that can improve the limit.
  • the electric parking brake system includes a motor 11 for providing a driving force, a reducer 12 for reducing the rotation speed of the motor 11, and a linear module for converting the rotational movement into a straight line.
  • the motor 11 is a motor 11 capable of forward and reverse rotation, and may implement a required torque of 29.96 N ⁇ m for parking of a medium-large commercial vehicle, and the operation of the motor 11 may be controlled by a motor controller. .
  • the reducer 12 is connected to the output shaft of the motor 11, and can reduce the rotational speed of the motor 11 using, for example, a planetary gear set.
  • the linear module is composed of a rotating screw 13 connected to the output shaft of the reducer 12 and a nut part 14 engaged with the rotating screw 13 to move up and down to convert the rotational motion of the motor 11 into a linear motion. Can be.
  • the rotary screw 13 is connected to the output shaft of the reducer 12 by the coupling 15, and receives the rotational force from the reducer 12 through the coupling 15 to rotate in place.
  • the nut part 14 has a female thread formed therein, and the rotary screw 13 is inserted into the nut part 14 to be engaged.
  • the electric chamber 10 deletes the power spring, the spring guide, the piston, the first diaphragm and the first spring from the existing spring chamber, and the motor 11, the reducer 12 and the linear module inside the chamber. Are arranged in the upper, middle and lower positions respectively.
  • the electric chamber 10 can be fastened to the flange case 16 and the bolt by eliminating the existing power spring and the first diaphragm, and can reduce the cost of paying the technical fee in relation to the conventional curling method. .
  • the service chamber 17 and the diaphragm 18 and the spring 19 installed in the service chamber 17 of the present invention are the same as the existing service chamber 17 and its internal parts, and thus detailed description thereof will be omitted. do.
  • the motor controller sends a signal to the motor 11 to operate the brake 11 in the forward direction for brake operation.
  • the reducer 12 slows down the rotational speed of the motor 11, and the rotating screw 13 is rotated in place according to the reduced rotational speed.
  • the push rod 20 connected to the rear surface of the diaphragm 18 is moved downward, and as the push rod 20 is withdrawn from the service chamber 17, the vehicle is connected to the push rod 20 through a clavis connected to the push rod 20. Activate the brake.
  • the motor controller sends a signal to the motor 11 to operate the motor 11 in the reverse direction.
  • the reducer 12 reduces the rotational speed of the motor 11, and the rotating screw 13 is rotated in place according to the reduced rotational speed.
  • the push rod 20 connected to the rear surface of the diaphragm 18 is moved upward, and as the push rod 20 is inserted into the service chamber 17, the vehicle is connected to the push rod 20 through a clavis connected to the push rod 20. Release the brake.
  • the motor 11, the reducer 12, and the linear module can implement a stroke (reciprocating distance) of a predetermined length from the mechanical type to the electric type, and the power spring and the first spring built in the existing spring chamber No need for diaphragm, so high load coil spring method leads to problems of loss of life and lateral forces in operation, limiting the durability life and exposure to the risk of human accidents due to random disassembly when troubleshooting the break chamber. Can be improved.

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

Abstract

The objective of the present invention is to provide an electrically-powered parking brake apparatus for mid-size and large commercial vehicles, which can solve existing problems by realizing a stroke (parking brake force) that enables an electrically-powered brake operation by applying a motor, a reduction gear, and a linear module, instead of a mechanical brake operation which uses an existing power spring, etc. The electrically-powered parking brake apparatus for mid-size and large commercial vehicles according to the present invention comprises: a motor which provides a driving force; a reduction gear which reduces the speed of the motor; and a linear module which produces a stroke of the parking brake of mid-size and large commercial vehicles by converting a speed-reduced rotary motion of the motor into a rectilinear motion.

Description

중대형 상용차용 전동식 파킹 브레이크 장치Electric parking brake system for medium and large commercial vehicles
본 발명은 중대형 상용차용 전동식 파킹 브레이크 장치에 관한 것으로서, 더욱 상세하게는 중대형 상용차의 파킹 브레이크 작동시 모터 구동으로 파킹 스트로크를 발생시키는 새로운 방식의 중대형 상용차용 전동식 파킹 브레이크 장치에 관한 것이다.The present invention relates to an electric parking brake device for a medium-large commercial vehicle, and more particularly, to a motorized parking brake device for a medium-large commercial vehicle of a new method for generating a parking stroke by driving the motor during the operation of the parking brake of the medium-large commercial vehicle.
에어브레이크와 같은 공압 브레이크 시스템은 그 안전성과 용이한 작동성으로 오랫동안 중대형 상용차 차량, 특히 큰 중량을 가진 트럭이나 버스와 같은 대형차량의 주행과 정지를 제어하는 데 사용되어 왔다.Pneumatic brake systems such as air brakes have long been used to control the running and stopping of medium and large commercial vehicle vehicles, especially large vehicles such as heavy trucks and buses.
그런데, 이들 대형 차량을 고속으로 주행시키기 위해서는 그 화물의 중량으로 인하여 더욱 브레이크 작동이 민감하고 신속하며, 실질적으로도 브레이크 작동력이 강한 제동력을 갖는 에어브레이크가 요구되고 있다.However, in order to drive these large vehicles at high speeds, air brakes are required to be more sensitive and quick to brake operation due to the weight of the cargo, and to have a substantially strong braking force.
에어 브레이크 시스템에서 가장 핵심 부품은 공기압을 이용하여 예를 들면 1800kgf의 힘으로 64mm의 스트로크를 만들어주는 브레이크 챔버이다.The key component of an air brake system is a brake chamber that uses air pressure to produce a stroke of 64 mm, for example with a force of 1800 kgf.
도 1 및 도 2는 종래의 일실시예에 따른 스프링 타입의 파킹 브레이크 장치의 작동상태를 보여주는 단면도로서, 상기 파킹 브레이크 장치는 상부와 하부에 각각 배치된 스프링챔버(11)와 서비스챔버(12)로 구성된다.1 and 2 are cross-sectional views illustrating an operation state of a spring type parking brake device according to an exemplary embodiment, wherein the parking brake device includes a spring chamber 11 and a service chamber 12 respectively disposed at upper and lower portions thereof. It consists of.
상기 스프링챔버(11)는 챔버 내부에 설치되고 탄성복원력에 의해 차량 브레이크를 작동시키기 위한 작동력을 발생시키는 파워스프링(13)과, 공기압에 의해 상방향으로 절곡변형되는 방식으로 파워스프링(13)을 압축하는 제1다이아프램(14)과,제1다이아프램(14)의 상면에 설치되어 압축력을 파워스프링(13)에 전달하는 피스톤(16)과, 격벽(10)의 홀을 통해 스프링챔버(11)와 서비스챔버(12) 사이에서 축방향으로 상하 이동되는 제1푸쉬로드(17)를 포함한다.The spring chamber 11 is installed in the chamber and the power spring 13 to generate an operating force for operating the vehicle brake by the elastic restoring force, and the power spring 13 in a way that is bent upward by the air pressure The first chamber diaphragm 14 to compress, the piston 16 is installed on the upper surface of the first diaphragm 14 to transmit the compressive force to the power spring 13, and the spring chamber through the holes of the partition wall (10) 11) and a first push rod 17 which is moved up and down in the axial direction between the service chamber 12.
이때, 파워스프링(13)의 상단부는 압축시 스프링챔버(11)의 상단 내측에 설치된 스프링 가이드(22)에 의해 안내되고, 파워스프링(13)의 하단부는 피스톤(16)의 플랜지부에 안착 지지된다. 그리고, 제1스프링(19)이 제1다이아프램(14)과 격벽(10) 사이에 설치되고, 제1다이아프램(14)은 제1스프링(19)에 의해 탄성지지된다.At this time, the upper end of the power spring 13 is guided by a spring guide 22 installed inside the upper end of the spring chamber 11 during compression, and the lower end of the power spring 13 is seated and supported by the flange of the piston 16. do. The first spring 19 is installed between the first diaphragm 14 and the partition wall 10, and the first diaphragm 14 is elastically supported by the first spring 19.
또한, 서비스챔버(12)는 공기압 또는 제1푸쉬로드(17)로부터 힘을 받아 상하방향으로 절곡변형되는 제2다이아프램(15)과, 제2다이아프램(15)과 연결되며 서비스챔버(12)의 하부 관통홀을 통해 인출되는 제2푸쉬로드(18)와, 상기 제2푸쉬로드(18)의 단부와 차량 브레이크 작동기구를 연결하며 제2푸쉬로드(18)의 승강작동에 따라 차량 브레이크를 작동 및 해제시키는 클래비스(21)를 포함한다. In addition, the service chamber 12 is connected to the second diaphragm 15 and the second diaphragm 15 which are bent and deformed in the vertical direction by the force of the air pressure or the first push rod 17, and the service chamber 12 The second push rod 18 drawn out through the lower through-hole of the bottom plate, the end of the second push rod 18 and the vehicle brake operating mechanism, and the vehicle brake according to the lifting operation of the second push rod 18. It comprises a clavis 21 for activating and deactivating.
이때, 제2스프링(20)이 제2푸쉬로드(18)의 연결판과 서비스챔버(12)의 하단부 사이에 설치되고, 제2다이아프램(15)은 제2스프링(20)에 의해 탄성지지된다. 이와 같은 구성에 의해 브레이크 액추에이터의 작동상태를 살펴보면 다음과 같다.At this time, the second spring 20 is installed between the connecting plate of the second push rod 18 and the lower end of the service chamber 12, the second diaphragm 15 is elastically supported by the second spring (20) do. Looking at the operating state of the brake actuator by such a configuration as follows.
예를 들면 브레이크 해제 시 또는 정상주행 시에는 스프링챔버(11)의 내부에 압축공기를 유입시킨다. 스프링챔버(11)에 유입된 압축공기의 압력에 의해 제1다이아프램(14)의 가장 자리부가 상방향으로 절곡변형되고, 피스톤(16)을 통해 전달되는 공기압에 의해 파워스프링(13)이 압축되며, 제1다이아프램(14)과 연결된 제1푸쉬로드(17)는 스프링 챔버(11) 안쪽으로 삽입 이동된다.For example, compressed air is introduced into the spring chamber 11 when the brake is released or during normal driving. The edge of the first diaphragm 14 is bent upward by the pressure of the compressed air introduced into the spring chamber 11, and the power spring 13 is compressed by the air pressure transmitted through the piston 16. The first push rod 17 connected to the first diaphragm 14 is inserted and moved into the spring chamber 11.
이어서, 제1푸쉬로드(17)가 상승함에 따라 제2다이아프램(15)은 제2스프링(20)의 탄성복원력에 의해 상방향으로 절곡변형되면서 제2푸쉬로드(18)가 서비스 챔버(12) 안쪽으로 삽입 이동되며, 제2푸쉬로드(18)와 연결된 클래비스(21)에 의해 차량 브레이크를 해제시킨다. Subsequently, as the first push rod 17 rises, the second diaphragm 15 is bent upward by the elastic restoring force of the second spring 20, and the second push rod 18 is the service chamber 12. The vehicle brake is inserted and moved inward and released by the clavis 21 connected to the second push rod 18.
브레이크 작동시에는 스프링챔버(11) 내부의 공기가 외부로 배출되면서 제1다이아프램(14)과 피스톤(16)을 통해 파워스프링(13)에 가해졌던 공기압이 해제됨에 따라 파워스프링(13)이 탄성복원력에 의해 팽창된다. 이어서, 제1다이아프램(14)의 가장차리부가 파워스프링(13)의 탄성복원력에 의해 하방향으로 절곡변형되면서 제1푸쉬로드(17)를 하방향으로 이동시키고, 이에 따라 제2다이아프램(15)의 가장자리부가 제1푸쉬로드(17)로부터 가압력을 받아 하방향으로 절곡변형된다.When the brake is operated, the power spring 13 is released as the air pressure applied to the power spring 13 is released through the first diaphragm 14 and the piston 16 while the air inside the spring chamber 11 is discharged to the outside. It is expanded by elastic restoring force. Subsequently, while the edge portion of the first diaphragm 14 is bent downward by the elastic restoring force of the power spring 13, the first push rod 17 is moved downward, and thus the second diaphragm ( The edge of 15 is bent and deformed downward by the pressing force from the first push rod 17.
그리고, 제2다이아프램(15)과 연결된 제2푸쉬로드(18)가 서비스챔버(12)에서 인출됨에 따라 제2푸쉬로드(18)의 하단부와 연결된 클래비스(21)에 의해 차량 브레이크를 작동시킨다. As the second push rod 18 connected to the second diaphragm 15 is pulled out of the service chamber 12, the vehicle brake is operated by the clavis 21 connected to the lower end of the second push rod 18. Let's do it.
그러나, 상기 파워스프링(13)의 주기적인 왕복운동(압축 및 팽창운동)과 왕복운동시 측방향 힘(side force)의 존재로 장시간 운전에 따른 파워스프링(13)의 장력 및 내구성이 저하되고, 브레이크 챔버의 고장 수리시 임의 분해에 따른 인명사고의 위험에 노출될 염려가 있는 문제점이 있다.However, the tension and durability of the power spring 13 due to long time operation are reduced due to the periodic reciprocation (compression and expansion) of the power spring 13 and the presence of side force in the reciprocating motion, When the breakdown of the brake chamber has been repaired, there is a problem that there is a risk of being exposed to the risk of human accident due to the arbitrary decomposition.
본 발명은 상기와 같은 문제점을 해결하기 위해 발명한 것으로서, 기존의 파워스프링 등을 이용한 기계식 대신에 모터, 감속기 및 리니어모듈의 적용을 통한 전동식으로 브레이크 작동을 위한 스트로크(파킹 제동력)를 구현함으로써, 기존의 문제점을 해결할 수 있는 중대형 상용차용 전동식 파킹 브레이크 장치를 제공하는데 그 목적이 있다.The present invention has been invented to solve the above problems, by implementing a stroke (parking braking force) for the brake operation by the electric motor through the application of a motor, a reducer and a linear module instead of a mechanical using a conventional power spring, An object of the present invention is to provide an electric parking brake device for a medium-large commercial vehicle that can solve the existing problems.
상기와 같은 목적을 달성하기 위해 본 발명에 따른 중대형 상용차용 전동식 파킹 브레이크 장치는 구동력을 제공하는 모터; 상기 모터의 속도를 감속하는 감속기; 감속된 모터의 회전운동을 직선운동으로 전환하여 중대형 상용차용 파킹 브레이크의 스트로크를 발생시키는 리니어모듈;을 포함하는 것을 특징으로 한다.In order to achieve the above object, an electric parking brake device for a medium-large commercial vehicle according to the present invention includes a motor for providing a driving force; A speed reducer for reducing the speed of the motor; And a linear module for converting the rotational motion of the reduced motor into a linear motion to generate a stroke of the parking brake for a medium-large commercial vehicle.
또한, 상기 리니어모듈은 감속기와 연결가능한 커플링; 상기 커플링을 통해 연결되어 감속된 속도로 회전하는 회전스크류; 상기 회전스크류와 치합되어 승강작동되는 너트부;를 포함하고, 상기 너트부의 승강 작동으로 파킹 브레이크의 작동을 위한 스트로크 변위를 발생시키는 것을 특징으로 한다.In addition, the linear module may be coupled to the reducer; A rotating screw connected through the coupling to rotate at a reduced speed; And a nut part engaged with the rotary screw to move up and down, and generate a stroke displacement for the operation of the parking brake by the lifting operation of the nut part.
본 발명에 따른 중대형 상용차용 전동식 파킹 브레이크 장치의 장점을 설명하면 다음과 같다.Referring to the advantages of the electric parking brake device for a medium-large commercial vehicle according to the present invention.
1. 모터, 감속기 및 리니어모듈을 통해 기계식에서 전동식으로 소정 길이의 스트로크(왕복이동거리)를 구현할 수 있고, 기존의 스프링챔버에 내장된 파워스프링 및 다이아프램 등이 필요 없게 되어 고하중의 코일스프링 방식으로 절손불량 및 작동시 측방향 힘의 존재로 내구수명의 한계, 그리고 브레이크 챔버의 고장 수리시 임의 분해에 따른 인명 사고의 위험에 노출 등의 문제점을 개선할 수 있다.1. The motor, reducer, and linear module can realize a stroke of a predetermined length (reciprocating travel distance) from mechanical to electric, and do not need the power spring and diaphragm built in the existing spring chamber, so that the coil spring of high load In this way, it is possible to improve the problems such as the failure loss and the presence of lateral force during operation, limiting the endurance life and exposure to the risk of human accidents due to the arbitrary disassembly during breakdown of the brake chamber.
2. 현재까지 상용차에 적용되고 있지 않는 전동식 파킹 브레이크 시스템의 개발을 통하여 작동방식의 변경, 즉 코일스프링에 의한 기계식에서 모터에 의한 전동식으로 변경 및 패키징화를 통한 신규 시스템의 개발로 기술력을 확보할 수 있을 뿐만 아니라, 브레이크 챔버의 외국 선진업체에 납부하고 있는 기술료에 대한 비용을 절감하고 기존의 고장력 스프링이 갖는 문제점의 개선을 통해 사업화 추진에 기여할 수 있다.2. The development of an electric parking brake system, which has not been applied to commercial vehicles, to date, changes the operating method, that is, the change from the mechanical type by the coil spring to the electric type by the motor and the development of a new system through packaging. In addition, it can contribute to commercialization by reducing the cost of technical fees paid to foreign advanced companies in brake chambers and improving the problems of existing high tension springs.
도 1 및 도 2는 종래의 일실시예에 따른 스프링 타입의 파킹 브레이크 장치의 작동상태를 보여주는 단면도1 and 2 are cross-sectional views showing the operating state of the spring type parking brake device according to an embodiment of the prior art
도 3은 본 발명의 일실시예에 따른 중대형 상용차용 전동식 파킹 브레이크장치의 정면도3 is a front view of the electric parking brake device for a medium-large commercial vehicle according to an embodiment of the present invention.
도 4는 도 3의 분해사시도4 is an exploded perspective view of FIG.
이하, 첨부 도면을 참조하여 본 발명의 바람직한 실시예를 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자(이하, 당업자 라고 칭함)가 용이하게 실시할 수 있도록 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains (hereinafter, referred to as those skilled in the art) may easily implement the present invention.
첨부한 도 3은 본 발명의 일실시예에 따른 중대형 상용차용 전동식 파킹 브레이크 장치의 정면도이고, 도 4는 도 3의 분해사시도이다.3 is a front view of the electric parking brake device for a medium-large commercial vehicle according to an embodiment of the present invention, Figure 4 is an exploded perspective view of FIG.
본 발명은 기존의 압축공기와 파워스프링을 이용하여 파킹 브레이크를 작동시키는 기계적인 방식에서 모터(11)와 리니어모듈 등을 이용하여 파킹 브레이크를 작동시키는 전동식으로 변경함으로써, 기존의 고장력 스프링이 갖는 내구성 한계를 개선할 수 있는 전동식 파킹 브레이크 시스템에 관한 것이다.The present invention is a mechanical method of operating the parking brake using the conventional compressed air and power spring to change the electric motor to operate the parking brake by using the motor 11 and the linear module, the durability of the existing high tension spring The present invention relates to an electric parking brake system that can improve the limit.
본 발명에 따른 전동식 파킹 브레이크 시스템은 구동력을 제공하는 모터(11)와, 모터(11)의 회전속도를 감속하기 위한 감속기(12)와, 회전운동을 직선으로 전환하는 리니어모듈을 포함한다.The electric parking brake system according to the present invention includes a motor 11 for providing a driving force, a reducer 12 for reducing the rotation speed of the motor 11, and a linear module for converting the rotational movement into a straight line.
상기 모터(11)는 정회전 및 역회전 가능한 모터(11)로서, 중대형 상용차의 파킹을 위한 요구토크 29.96N·m를 구현할 수 있고, 모터(11)의 작동은 모터컨트롤러에 의해 제어될 수 있다.The motor 11 is a motor 11 capable of forward and reverse rotation, and may implement a required torque of 29.96 N · m for parking of a medium-large commercial vehicle, and the operation of the motor 11 may be controlled by a motor controller. .
또한, 상기 모터(11)를 구동하기 위해 기존의 중대형 상용차량에 장착된 24V 배터리의 전원을 모터(11)에 공급함으로써, 차량 내부의 전기를 활용할 수 있는 장점을 가진다. 감속기(12)는 모터(11)의 출력축과 연결되고, 예를 들면 유성기어세트를 이용하여 모터(11)의 회전속도를 감속할 수 있다.In addition, by supplying the power of the 24V battery mounted on the existing medium-large commercial vehicle to the motor 11 to drive the motor 11, there is an advantage that can utilize the electricity inside the vehicle. The reducer 12 is connected to the output shaft of the motor 11, and can reduce the rotational speed of the motor 11 using, for example, a planetary gear set.
리니어모듈은 모터(11)의 회전운동을 직선운동으로 전환하기 위해 감속기(12)의 출력축과 연결된 회전스크류(13)와, 회전스크류(13)와 치합되어 상하운동하는 너트부(14)로 구성될 수 있다.The linear module is composed of a rotating screw 13 connected to the output shaft of the reducer 12 and a nut part 14 engaged with the rotating screw 13 to move up and down to convert the rotational motion of the motor 11 into a linear motion. Can be.
회전스크류(13)는 커플링(15)에 의해 감속기(12)의 출력축과 연결되며, 커플링(15)을 통해 감속기(12)로부터 회전력을 전달받아 제자리에서 회전한다. 너트부(14)는 내부에 암나사산이 형성되고, 회전스크류(13)가 너트부(14)의 내부에 삽입되어 치합된다.The rotary screw 13 is connected to the output shaft of the reducer 12 by the coupling 15, and receives the rotational force from the reducer 12 through the coupling 15 to rotate in place. The nut part 14 has a female thread formed therein, and the rotary screw 13 is inserted into the nut part 14 to be engaged.
그리고, 너트부(14)는 회전스크류(13)와 치합되며, 회전스크류(13)의 회전에Then, the nut portion 14 is meshed with the rotating screw 13, the rotation of the rotating screw 13
따라 회전없이 승강가능하다. 다시 말해서, 회전스크류(13)가 회전하면 너트부(14)는 상하방향으로 이동하며, 너트부(14)의 하단부는 플랜지 케이스(16)의 중간에 형성된 격벽의 관통홀을 통해 관통하여 서비스챔버(17)의 다이아프램(18)과 접하게 되며, 너트부(14)의 하강에 의해 서비스챔버(17)의 다이아프램(18)을 하방향으로 이동시킬 수 있다.It can move up and down without rotation. In other words, when the rotating screw 13 rotates, the nut part 14 moves upward and downward, and the lower end of the nut part 14 penetrates through a through hole of a partition wall formed in the middle of the flange case 16 to serve the service chamber. It comes into contact with the diaphragm 18 of (17), and the diaphragm 18 of the service chamber 17 can be moved downward by the fall of the nut part 14. As shown in FIG.
본 발명에 따른 전동챔버(10)는 기존의 스프링챔버에서 파워스프링, 스프링가이드, 피스톤, 제1다이아프램 및 제1스프링을 삭제하고, 챔버 내부에 모터(11), 감속기(12) 및 리니어모듈을 상부, 중간 및 하부 위치로 각각 배치된다.The electric chamber 10 according to the present invention deletes the power spring, the spring guide, the piston, the first diaphragm and the first spring from the existing spring chamber, and the motor 11, the reducer 12 and the linear module inside the chamber. Are arranged in the upper, middle and lower positions respectively.
상기 전동챔버(10)는 기존의 파워스프링 및 제1다이아프램 등을 삭제함으로써 플랜지 케이스(16)와 볼트로 체결가능하고, 기존의 컬링 방식 등 공법 관련하여 기술료 지급에 따른 비용을 절감할 수 있다.The electric chamber 10 can be fastened to the flange case 16 and the bolt by eliminating the existing power spring and the first diaphragm, and can reduce the cost of paying the technical fee in relation to the conventional curling method. .
본 발명의 서비스챔버(17) 및 서비스챔버(17)의 내부에 설치된 다이아프램(18) 및 스프링(19) 등은 기존의 서비스챔버(17) 및 그 내부 부품과 동일하여 자세한 설명을 생략하기로 한다.The service chamber 17 and the diaphragm 18 and the spring 19 installed in the service chamber 17 of the present invention are the same as the existing service chamber 17 and its internal parts, and thus detailed description thereof will be omitted. do.
이와 같은 구성에 의한 본 발명의 전동식 파킹 브레이크 장치의 작동상태를 설명하면 다음과 같다.Referring to the operating state of the electric parking brake device of the present invention by such a configuration as follows.
브레이크 작동을 위해 모터컨트롤러가 모터(11)에 신호를 보내어 모터(11)를 정방향으로 가동시킨다.The motor controller sends a signal to the motor 11 to operate the brake 11 in the forward direction for brake operation.
상기 모터(11)가 정회전 되면 감속기(12)가 모터(11)의 회전속도를 감속시키며, 감속된 회전속도에 따라 회전스크류(13)가 제자리에서 회전된다.When the motor 11 rotates forward, the reducer 12 slows down the rotational speed of the motor 11, and the rotating screw 13 is rotated in place according to the reduced rotational speed.
상기 회전스크류(13)가 회전됨에 따라 너트부(14)가 회전 없이 하방향으로 이동하며, 너트부(14)의 하강이동에 의해 서비스챔버(17)의 다이아프램(18)이 하방향으로 절곡변형된다.As the rotating screw 13 is rotated, the nut part 14 moves downward without rotation, and the diaphragm 18 of the service chamber 17 is bent downward by the downward movement of the nut part 14. Is deformed.
이어서, 다이아프램(18)의 이면에 연결된 푸쉬로드(20)가 하방향으로 이동되며, 푸쉬로드(20)가 서비스챔버(17)에서 인출됨에 따라 푸쉬로드(20)와 연결된 클래비스를 통해 차량 브레이크를 작동시킨다.Subsequently, the push rod 20 connected to the rear surface of the diaphragm 18 is moved downward, and as the push rod 20 is withdrawn from the service chamber 17, the vehicle is connected to the push rod 20 through a clavis connected to the push rod 20. Activate the brake.
브레이크를 해제시키기 위해 모터컨트롤러가 모터(11)에 신호를 보내어 모터(11)를 역방향으로 가동시킨다. 상기 모터(11)가 역회전 되면 감속기(12)가 모터(11)의 회전속도를 감속시키며, 감속된 회전속도에 따라 회전스크류(13)가 제자리에서 회전된다.To release the brake, the motor controller sends a signal to the motor 11 to operate the motor 11 in the reverse direction. When the motor 11 is rotated in reverse, the reducer 12 reduces the rotational speed of the motor 11, and the rotating screw 13 is rotated in place according to the reduced rotational speed.
상기 회전스크류(13)가 회전됨에 따라 너트부(14)가 회전 없이 상방향으로 이동하며, 너트부(14)의 상승이동에 의해 서비스챔버(17)의 다아아프램이 상방향으로 이동한다. As the rotating screw 13 is rotated, the nut portion 14 moves upward without rotation, and the diaphragm of the service chamber 17 moves upward by the upward movement of the nut portion 14.
이어서, 다이아프램(18)의 이면에 연결된 푸쉬로드(20)가 상방향으로 이동되며, 푸쉬로드(20)가 서비스챔버(17)에 삽입됨에 따라 푸쉬로드(20)와 연결된 클래비스를 통해 차량 브레이크를 해제시킨다.Subsequently, the push rod 20 connected to the rear surface of the diaphragm 18 is moved upward, and as the push rod 20 is inserted into the service chamber 17, the vehicle is connected to the push rod 20 through a clavis connected to the push rod 20. Release the brake.
따라서, 본 발명에 의하면 모터(11), 감속기(12) 및 리니어모듈을 통해 기계식에서 전동식으로 소정 길이의 스트로크(왕복이동거리)를 구현할 수 있고, 기존의 스프링챔버에 내장된 파워스프링 및 제1다이아프램 등이 필요 없게 되어 고하중의 코일스프링 방식으로 절손불량 및 작동시 측방향 힘의 존재로 내구수명의 한계, 그리고 브레이크 챔버의 고장 수리 시 임의 분해에 따른 인명 사고의 위험에 노출 등의 문제점을 개선할 수 있다. Therefore, according to the present invention, the motor 11, the reducer 12, and the linear module can implement a stroke (reciprocating distance) of a predetermined length from the mechanical type to the electric type, and the power spring and the first spring built in the existing spring chamber No need for diaphragm, so high load coil spring method leads to problems of loss of life and lateral forces in operation, limiting the durability life and exposure to the risk of human accidents due to random disassembly when troubleshooting the break chamber. Can be improved.
아울러, 차량 내 24V 배터리를 활용하여 모터구동에 의한 파킹 브레이크를 작동시킴으로써 기존의 스프링챔버 내의 압축공기 유입을 배제함에 따라 상용차 내에어 리저버의 활용을 최소화할 수 있다. In addition, by using the 24V battery in the vehicle to operate the parking brake by driving the motor to eliminate the compressed air in the existing spring chamber, it is possible to minimize the utilization of the reservoir in the commercial vehicle.
현재까지 상용차에 적용되고 있지 않는 전동식 파킹 브레이크 시스템의 개발을 통하여 작동방식의 변경, 즉 코일스프링에 의한 기계식에서 모터(11)에 의한 전동식으로 변경 및 패키징화를 통한 신규 시스템의 개발로 기술력을 확보할 수 있을 뿐만 아니라, 브레이크 챔버의 외국 선진업체에 납부하고 있는 기술료에 대한 비용을 절감하고 기존의 고장력 스프링이 갖는 문제점의 개선을 통해 사업화 추진에 기여할 수 있다.The development of an electric parking brake system that has not been applied to commercial vehicles until now, changes the operation method, that is, the technology is secured by the development of a new system through the change from the mechanical type by the coil spring to the electric type by the motor 11 and the packaging. In addition, it can contribute to commercialization by reducing the cost of technical fees paid to foreign advanced companies in brake chambers and improving the problems of existing high tension springs.
10 : 전동챔버 11 : 모터10: electric chamber 11: motor
12 : 감속기 13 : 회전스크류12: reducer 13: rotating screw
14 : 너트부 15 : 커플링14 nut 15 coupling
16 : 플랜지 케이스 17 : 서비스챔버16: flange case 17: service chamber
18 : 다이아프램 19 : 스프링18: diaphragm 19: spring
20 : 푸쉬로드20: pushrod

Claims (2)

  1. 구동력을 제공하는 모터(11);A motor 11 providing a driving force;
    상기 모터(11)의 속도를 감속하는 감속기(12);A reducer (12) for reducing the speed of the motor (11);
    감속된 모터(11)의 회전운동을 직선운동으로 전환하여 중대형 상용차용 파킹 브레이크의 스트로크를 발생시키는 리니어모듈;A linear module for converting the rotational motion of the reduced motor 11 into a linear motion to generate a stroke of the parking brake for a medium-large commercial vehicle;
    을 포함하는 중대형 상용차용 전동식 파킹 브레이크 장치.Electric parking brake device for a medium-large commercial vehicle comprising a.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 리니어모듈은 감속기(12)와 연결가능한 커플링(15);The linear module has a coupling (15) connectable to the reducer (12);
    상기 커플링(15)을 통해 연결되어 감속된 속도로 회전하는 회전스크류(13);A rotating screw 13 connected through the coupling 15 to rotate at a reduced speed;
    상기 회전스크류(13)와 치합되어 승강 작동되는 너트부(14);를 포함하고, And a nut part 14 engaged with the rotary screw 13 to move up and down.
    상기 너트부(14)의 승강 작동으로 파킹 브레이크의 작동을 위한 스트로크 변위를 발생시키는 것을 특징으로 하는 중대형 상용차용 전동식 파킹 브레이크 장치.Electric parking brake device for a medium-large commercial vehicle, characterized in that for generating a stroke displacement for the operation of the parking brake by the lifting operation of the nut portion (14).
PCT/KR2012/011803 2012-06-26 2012-12-28 Electrically-powered parking brake apparatus for mid-size and large commercial vehicles WO2014003274A1 (en)

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KR10-2012-0068593 2012-06-26
KR20120068593 2012-06-26

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WO2002018188A1 (en) * 2000-08-30 2002-03-07 Sila Holding Industriale S.P.A. An actuator unit for a braking device, particularly for a vehicle parking brake
US7337882B2 (en) * 2003-07-07 2008-03-04 Aktiebolaget Skf Linear electromechanical screw actuator for parking brake
WO2008087506A2 (en) * 2007-01-19 2008-07-24 Aktiebolaget Skf A linear electro-mechanical actuator for a parking brake
WO2009016660A1 (en) * 2007-07-30 2009-02-05 Freni Brembo S.P.A. Electrical parking brake
KR20090039058A (en) * 2007-10-17 2009-04-22 현대모비스 주식회사 Motor axial connecting typed electrical parking brake in vehicle
KR20100039075A (en) * 2008-10-07 2010-04-15 주식회사 만도 Disk brake with the electronic parking brake system
KR101055975B1 (en) * 2005-06-22 2011-08-11 주식회사 만도 Electric parking brake

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WO2002018188A1 (en) * 2000-08-30 2002-03-07 Sila Holding Industriale S.P.A. An actuator unit for a braking device, particularly for a vehicle parking brake
US7337882B2 (en) * 2003-07-07 2008-03-04 Aktiebolaget Skf Linear electromechanical screw actuator for parking brake
KR101055975B1 (en) * 2005-06-22 2011-08-11 주식회사 만도 Electric parking brake
WO2008087506A2 (en) * 2007-01-19 2008-07-24 Aktiebolaget Skf A linear electro-mechanical actuator for a parking brake
WO2009016660A1 (en) * 2007-07-30 2009-02-05 Freni Brembo S.P.A. Electrical parking brake
KR20090039058A (en) * 2007-10-17 2009-04-22 현대모비스 주식회사 Motor axial connecting typed electrical parking brake in vehicle
KR20100039075A (en) * 2008-10-07 2010-04-15 주식회사 만도 Disk brake with the electronic parking brake system

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Publication number Priority date Publication date Assignee Title
CN108490499A (en) * 2018-04-08 2018-09-04 李慧 Detection device on lithium battery automatic assembly line

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