KR20120045599A - Multi function breaking pressure generating device - Google Patents

Multi function breaking pressure generating device Download PDF

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Publication number
KR20120045599A
KR20120045599A KR1020100107232A KR20100107232A KR20120045599A KR 20120045599 A KR20120045599 A KR 20120045599A KR 1020100107232 A KR1020100107232 A KR 1020100107232A KR 20100107232 A KR20100107232 A KR 20100107232A KR 20120045599 A KR20120045599 A KR 20120045599A
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South Korea
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pedal
hydraulic pressure
electric booster
piston
movement
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KR1020100107232A
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Korean (ko)
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KR101660047B1 (en
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이상목
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현대모비스 주식회사
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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
    • B60T13/10—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
    • B60T13/143—Master cylinder mechanically 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4077—Systems in which the booster is used as an auxiliary pressure source
    • 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
    • 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
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
    • B60T17/222—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems by filling or bleeding of hydraulic systems
    • B60T17/223—Devices for pressurising brake systems acting on pedal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • B60T8/4086—Systems with stroke simulating devices for driver input the stroke simulating device being connected to, or integrated in the driver input device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4266—Debooster systems having an electro-mechanically actuated expansion unit, e.g. solenoid, electric motor, piezo stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
    • 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
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems

Abstract

PURPOSE: A multifunction brake fluid pressure generator is able to brake effectively by only one master cylinder by using the pedal simulator receiving the oil force from one master cylinder. CONSTITUTION: A multifunction brake fluid pressure generator comprises a electric booster(1), a master cylinder(6), and a pedal simulator(20). The electric booster is controlled by ECU(electronic control unit) and generates the power. The master cylinder generates the fluid pressure through the operation of electric booster. The pedal simulator transfers the reaction force towards pedal through restricting the pushed distance by input of the pedal(31). The pedal simulator generates the fluid pressure in case of the electric booster failed. The pedal simulator implements the fail-safe through the operation of booster according to the stroke of pedal.

Description

다기능 제동유압발생장치{Multi Function Breaking Pressure Generating Device} Multi Function Breaking Pressure Generating Device

본 발명은 차량의 제동유압발생장치에 관한 것으로, 특히 전동부스터 방식 제동장치에 적용되는 다기능 제동유압발생장치에 관한 것이다.The present invention relates to a braking hydraulic pressure generating device of a vehicle, and more particularly to a multifunctional braking hydraulic pressure generating device applied to an electric booster-type braking device.

일반적으로 유압을 이용해 차량을 제동하는 브레이크시스템은 브레이크페달의 조작력을 부스터로 배력해 마스터실린더로 전달함으로써, 상기 마스터실린더를 통해 제동유압을 형성하게 된다.In general, a brake system for braking a vehicle by using hydraulic pressure causes the brake pedal operation force to be boosted by the booster and transferred to the master cylinder, thereby forming braking hydraulic pressure through the master cylinder.

반면에 전동부스터 방식 제동장치는 모터로 유압을 형성하는 제1마스터실린더와 페달로 작동되어 유압을 형성하는 제2마스터실린더가 구비되고, 상기 2개의 마스터실린더간 협조제어로 회생제동을 구현하는 방식이다.On the other hand, the electric booster type braking device includes a first master cylinder that generates hydraulic pressure by a motor and a second master cylinder that generates hydraulic pressure by pedaling, and implements regenerative braking by cooperative control between the two master cylinders. to be.

상기와 같은 전동부스터 방식 제동장치에는 페달쪽으로 페달 스트로크에 따른 반력을 제공해 페달을 조작하고 있는 페달답력을 느끼게 하는 페달시뮬레이터가 구비되어진다.The electric booster-type braking device as described above is provided with a pedal simulator for providing a reaction force according to the pedal stroke toward the pedal so as to feel the pedal effort of operating the pedal.

또한, 마스터실린더와 휠쪽을 이어주는 유압 라인으로 다수의 솔레노이드밸브를 설치함으로써, 전기적 페일(Fail)이나 유로 연결부의 페일(Fail)시 페일-세이프(Fail-Safe)를 구현하게 된다.In addition, by installing a plurality of solenoid valves in the hydraulic line connecting the master cylinder and the wheel side, it is possible to implement the fail-safe (Fail-Safe) when the electrical failure (Fail) or the flow path of the connection (Fail).

하지만, 상기와 같이 전동부스터 방식 제동장치는 2개의 마스터실린더와 1개의 페달시뮬레이터 및 유압 라인에 설치된 다수의 솔레노이드밸브를 기본적인 구성요소로 필요로 함에 따라, 제동장치의 부피와 중량의 증가뿐만 아니라 생산단가 상승은 물론 유압 라인이 복잡해질 수밖에 없게 된다. However, as described above, the electric booster type brake system requires two master cylinders, one pedal simulator, and a plurality of solenoid valves installed in the hydraulic line as basic components, thereby increasing the volume and weight of the brake system as well as producing them. Not only will the price increase, but the hydraulic lines will have to be complicated.

상기와 같은 제반 문제는 특히 2개의 마스터실린더를 이용해 회생제동과 페일-세이프(Fail-Safe)를 구현하는 방식에 의해 기인되어진다.
The above problems are caused in particular by the method of implementing regenerative braking and fail-safe using two master cylinders.

이에 상기와 같은 점을 감안하여 발명된 본 발명은 전동부스터로 작동되어 유압을 발생하는 1개의 마스터실린더가 페일-세이프(Fail-Safe)의 구현시 비 유압 반력을 제공하는 페달시뮬레이터로 작동됨으로써, 1개의 마스터실린더만으로도 전동부스터 방식 제동장치를 구성할 수 있는 다기능 제동유압발생장치를 제공하는데 목적이 있다.
Accordingly, the present invention in view of the above point is operated by an electric booster, so that one master cylinder that generates hydraulic pressure is operated as a pedal simulator that provides non-hydraulic reaction force when fail-safe is implemented. An object of the present invention is to provide a multifunctional braking hydraulic pressure generating device capable of constructing an electric booster-type braking device with only one master cylinder.

상기와 같은 목적을 달성하기 위한 본 발명의 다기능 제동유압발생장치는 페달의 스트로크에 따라 요구되는 제동압력을 산출하는 ECU를 통해 제어되어 동력을 발생시키는 전동부스터와;Multifunctional braking hydraulic pressure generating apparatus of the present invention for achieving the above object is an electric booster which is controlled by the ECU to calculate the braking pressure required according to the stroke of the pedal to generate power;

상기 전동부스터를 통한 작동으로 유압을 발생시키는 마스터실린더와; A master cylinder generating hydraulic pressure by the electric booster;

상기 페달의 입력으로 밀려나는 이동거리가 구속되어 상기 페달쪽으로 반력을 전달하고, 상기 전동부스터의 페일(Fail)시 상기 마스터실린더에서 유압이 발생되도록 상기 페달의 스트로크에 따라 밀려나 상기 전동부스터를 작동시켜 페일-세이프(Fail-Safe)를 구현하는 페달시뮬레이터;The movement distance pushed by the input of the pedal is constrained to transmit the reaction force toward the pedal, and when the electric booster fails, the electric booster is pushed according to the stroke of the pedal to generate hydraulic pressure in the master cylinder. A pedal simulator for implementing fail-safe;

를 포함해 구성되어진 것을 특징으로 한다.Characterized in that configured to include.

상기 전동부스터는 상기 ECU를 통해 제어되고 구동되는 모터와, 커넥터에 결합되어 상기 모터의 회전을 상기 마스터실린더를 가압하는 직선이동으로 전환시켜주는 진퇴이동기로 구성되어진다.The electric booster is composed of a motor controlled and driven through the ECU, and a retraction mover coupled to a connector to convert the rotation of the motor into a linear movement for pressing the master cylinder.

상기 마스터실린더는 상기 전동부스터를 통해 전진이동되어 유압을 형성하고, 형성된 유압을 제1?2배출구로 배출시켜주는 피스톤이동체를 갖추어 구성되어진다.The master cylinder is moved forward through the electric booster to form a hydraulic pressure, and is configured with a piston moving body for discharging the formed hydraulic pressure to the first and second outlet.

상기 페달시뮬레이터는 상기 페달과 함께 움직이는 상기 피스톤의 구속시 이동을 차단하고, 상기 피스톤의 구속 해제시 이동을 허용하는 이동구속부재와; 상기 이동구속부재에 의한 이동구속시 상기 피스톤을 통해 가압되어 상기 페달쪽으로 전달되는 반력을 상기 피스톤으로 전달하고, 상기 이동구속부재에 의한 이동구속해제시 상기 피스톤과 함께 밀려나 상기 전동부스터을 작동시켜 주는 반력형성부재; 로 구성되어진다.The pedal simulator may include: a movement restraining member configured to block movement during restraint of the piston moving together with the pedal and to allow movement when restraining the piston; Reaction force pressurized through the piston to transfer the reaction force to the pedal when the movement is restricted by the movement restraint member, and is pushed together with the piston to release the movement restraint by the movement restraint member to operate the electric booster. Forming member; It consists of.

상기 이동구속부재는 상기 피스톤과 함께 이동되는 스토퍼와, 인입로드의 인출시 상기 스토퍼를 구속해 상기 피스톤의 움직임을 구속하는 솔레노이드로 구성되어진다.The moving restraining member includes a stopper that moves together with the piston, and a solenoid that restrains the stopper when the inlet rod is pulled out to restrain the movement of the piston.

상기 반력형성부재는 직선이동되는 가압로드에 지지되고 상기 피스톤에 의해 밀려나는 가압력을 받는 탄성체와, 상기 탄성체를 탄발지지하는 리턴스프링으로 구성되어진다.
The reaction force forming member is composed of an elastic body supported by a pressure rod that is linearly moved and is subjected to a pressing force pushed by the piston, and a return spring for elastically supporting the elastic body.

이러한 본 발명은 마스터실린더가 전동부스터와 페달로 조작되는 페달시뮬레이터를 통해서도 작동되어 전동부스터 방식 제동장치의 마스터실린더를 1개만으로도 구성할 수 있는 효과가 있게 된다.The present invention is also operated through the pedal simulator operated by the electric booster and the pedal to the master cylinder has an effect that can be configured with only one master cylinder of the electric booster-type braking device.

또한, 본 발명은 페달시뮬레이터와 연계된 1개의 마스터실린더로 페일-세이프(Fail-Safe)를 구현하므로 솔레노이드밸브를 설치하지 않은 단순한 유압라인의 구축이 가능하고, 부품수량 감소와 원가절감에도 크게 기여할 수 있는 효과가 있게 된다.
In addition, the present invention implements fail-safe with one master cylinder linked to the pedal simulator, so that it is possible to construct a simple hydraulic line without installing a solenoid valve, and to greatly reduce component quantity and cost. It can be effective.

도 1은 본 발명에 따른 다기능 제동유압발생장치의 구성도이고, 도 2는 본 발명에 따른 다기능 제동유압발생장치를 적용한 전동부스터 방식 제동장치의 회생제동작동도이며, 도 3은 본 발명에 따른 제동유압발생장치를 적용한 전동부스터 방식 제동장치의 페일-세이프(Fail-Safe)작동도이다.1 is a configuration diagram of a multifunctional braking hydraulic pressure generating apparatus according to the present invention, FIG. 2 is a regenerative braking operation diagram of an electric booster type braking apparatus to which the multifunctional braking hydraulic pressure generating apparatus according to the present invention is applied, and FIG. Fail-Safe operation diagram of electric booster type brake system with braking hydraulic pressure generator.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

도 1은 본 실시예에 따른 다기능 제동유압발생장치의 구성도를 나타낸다.1 shows a configuration diagram of a multifunctional braking hydraulic pressure generating apparatus according to the present embodiment.

도시된 바와 같이, 상기 다기능 제동유압발생장치는 페달의 스트로크에 따라 요구되는 제동압력을 산출하는 ECU를 통해 제어되는 전동부스터(1)와, 상기 전동부스터(1)를 통해 구동되어 유압을 발생시키도록 오일리저버(5)를 갖추고 유압을 배출하는 한쌍의 제1?2배출구(8a,8b)를 갖춘 마스터실린더(6)와, 페달에 의해 밀려나면서 페달쪽으로 반력을 전달하고 상기 전동부스터(1)의 페일(Fail)시 상기 마스터실린더(6)를 작동시켜 페일-세이프(Fail-Safe)를 구현하는 페달시뮬레이터(20)로 구성되어진다.As shown, the multi-function braking hydraulic pressure generating device is driven by the electric booster (1) controlled by the ECU for calculating the required braking pressure according to the stroke of the pedal, the electric booster (1) is driven to generate the hydraulic pressure And a master cylinder (6) having a pair of first and second discharge ports (8a, 8b) for discharging the hydraulic pressure and having an oil reservoir (5) so as to be pushed by the pedal to transmit the reaction force toward the pedal and the electric booster (1). It is composed of a pedal simulator 20 to implement the fail-safe (Fail-Safe) by operating the master cylinder (6) during the fail (Fail).

상기 전동부스터(1)는 ECU를 통해 제어되고 구동되는 모터(2)와, 커넥터(3)에 결합되어 상기 모터(2)의 회전을 전후직선이동으로 전환시켜 마스터실린더(6)를 작동하는 진퇴이동기(4)로 구성되어진다.The electric booster 1 is coupled to the motor 2 and the connector 3, which are controlled and driven by the ECU, and converts the rotation of the motor 2 into forward and backward linear movement to operate the master cylinder 6. The mobile device 4 is comprised.

상기 진퇴이동기(4)는 스크류-너트 구조로 되어 있는 스핀들이 모터(2)의 회전력을 받아 직선운동으로 변환시켜 마스터실린더를 가압하는 구조이며, 이는 NSL(Non - Self Locking)타입과 같이 통상적인 구조도 적용되어진다.The retreat mover (4) is a structure in which a spindle having a screw-nut structure receives a rotational force of the motor (2) and converts it into a linear motion to pressurize the master cylinder. The structure is also applied.

상기 마스터실린더(6)는 전동부스터(1)를 통해 전진이동되어 유압을 형성하고, 형성된 유압을 제1?2배출구(8a,8b)로 배출시켜주는 피스톤이동체(7)로 구성되어진다.The master cylinder (6) is moved forward through the electric booster (1) to form a hydraulic pressure, it is composed of a piston moving body (7) for discharging the formed hydraulic pressure to the first and second outlets (8a, 8b).

상기 페달시뮬레이터(20)는 페달과 함께 움직이는 입력로드(12)에 구비된 피스톤(13)을 수용한 페달실린더(10)에 연결된 실린더하우징(21)과, 상기 실린더하우징(21)의 내부에서 입력로드(12)에 구비된 피스톤(13)을 통해 이동되고 상기 피스톤(13)쪽으로 반력을 전달하는 반력형성부재와, 상기 반력형성부재의 전진이동을 제한하는 이동구속부재로 구성되어진다.The pedal simulator 20 has a cylinder housing 21 connected to a pedal cylinder 10 accommodating a piston 13 provided on an input rod 12 moving together with a pedal, and an input inside the cylinder housing 21. It is composed of a reaction force forming member for moving through the piston 13 provided in the rod 12 and transmitting a reaction force toward the piston 13, and a moving restraining member for limiting the forward movement of the reaction force forming member.

상기 페달실린더(10)는 입력로드(12)에 구비된 피스톤(13)을 수용한 실린더하우징(11)을 구비하지만, 상기 실린더하우징(11)은 페달시뮬레이터(20)의 실린더하우징(21)과 일체로 형성될 수 있다.The pedal cylinder 10 has a cylinder housing 11 for accommodating the piston 13 provided in the input rod 12, but the cylinder housing 11 is a cylinder housing 21 of the pedal simulator 20 and It can be formed integrally.

상기 반력형성부재는 직선이동되는 가압로드(22)와, 상기 가압로드(22)에 의해 압축변형되고 입력로드(12)의 피스톤(13)쪽으로 반력을 전달하는 탄성체(23)와, 상기 탄성체(23)를 탄발지지하는 리턴스프링(24)으로 구성되어진다.The reaction force forming member may include a pressing rod 22 which is linearly moved, an elastic body 23 that is compressively deformed by the pressing rod 22, and transmits a reaction force toward the piston 13 of the input rod 12, and the elastic body ( 23 is composed of a return spring 24 that supports the ball.

상기 반력형성부재는 이동구속부재의 작동시 이동거리의 제한으로 페달로 반력을 전달하는 페달시뮬레이터로서 작동되지만, 이동구속부재의 미작동시 이동거리의 미 제한으로 페달의 움직임으로 전동부스터(1)를 작동시켜주는 동력원으로서 작용되어진다. The reaction force forming member is operated as a pedal simulator that transmits reaction force to the pedal by the limitation of the movement distance when the movement restraint member is operated, but the electric booster (1) by the movement of the pedal due to the limitation of the movement distance when the movement restraint member is inoperative. It acts as a power source to operate the engine.

상기 이동구속부재는 페달에 연동되어 움직이는 입력로드(12)의 피스톤(13)에 구비되어진 스토퍼(14)와, 인입로드(25a)의 인출시 상기 스토퍼(14)를 구속해 피스톤(13)의 움직임을 구속하는 솔레노이드(25)로 구성되어진다.The moving restraining member restrains the stopper 14 provided on the piston 13 of the input rod 12 moving in conjunction with the pedal, and the stopper 14 when the inlet rod 25a is pulled out to restrain the piston 13. It consists of a solenoid 25 to restrain movement.

상기 솔레노이드(25)는 ECU를 이용해 온/오프 제어되어지고, 전기가 공급된 정상상태에서 인입로드(25a)가 인출된 상태를 갖는다.The solenoid 25 is controlled on / off using an ECU and has a state in which the inlet rod 25a is drawn out in a normal state in which electricity is supplied.

도 2는 본 실시예에 따른 다기능 제동유압발생장치를 적용한 전동부스터 방식 제동장치를 나타낸다.2 shows an electric booster type braking device to which the multifunctional braking hydraulic pressure generating device according to the present embodiment is applied.

도시된 바와 같이, 본 실시예에 따른 다기능 제동유압발생장치는 전동부스터(1)가 페달센서(32)의 신호를 받는 ECU(30)에 연결되고, 마스터실린더(6)의 제1?2배출구(8a,8b)가 전륜과 후륜의 휠실린더(50)로 제동압을 분배하는 ESC(40, Electronic Stability Control)로 연결되며, 페달시뮬레이터(20)는 페달(31)에 연동되어 움직이는 입력로드(12)를 통해 페달(31)과 연결되어진다.As shown, the multi-function braking hydraulic pressure generating apparatus according to the present embodiment is connected to the ECU 30, the electric booster 1 receives the signal of the pedal sensor 32, the first outlet outlet of the master cylinder (6) (8a, 8b) is connected to the ESC (Electronic Stability Control) 40 to distribute the braking pressure to the wheel cylinder 50 of the front wheel and the rear wheel, the pedal simulator 20 is interlocked with the pedal 31, the input rod ( 12 is connected to the pedal (31).

상기와 같이 다기능 제동유압발생장치를 적용한 제동장치가 회생제동(Regenerative Braking)을 구현하면, ECU(30)가 센서(32)에서 검출된 페달(31)의 스트로크를 이용해 전동부스터(1)를 구동하게 되고, 상기 전동부스터(1)의 회전은 스크류-너트 구조의 진퇴이동기(4)를 통해 마스터실린더(6)로 전달됨으로써 마스터실린더(6)를 작동시켜 주게 된다.When the brake device to which the multifunctional brake hydraulic pressure generator is applied implements regenerative braking, the ECU 30 drives the electric booster 1 using the stroke of the pedal 31 detected by the sensor 32. The rotation of the electric booster 1 is transmitted to the master cylinder 6 through the screw mover 4 of the screw-nut structure to operate the master cylinder 6.

이때, 상기 ECU(30)는 센서(32)를 통해 검출된 페달(31)의 스트로크에 따른 요구 제동압을 산출하고, 산출된 제동압을 발생시킬 수 있도록 전동부스터(1)를 구동하게 된다.At this time, the ECU 30 calculates the required braking pressure according to the stroke of the pedal 31 detected through the sensor 32 and drives the electric booster 1 to generate the calculated braking pressure.

상기 마스터실린더(6)의 작동으로 발생된 유압은 한쌍의 제1?2유압라인(8a,8b)을 통해 ESC(40)로 공급되고, 상기 ESC(40)에서 분배되어진 유압은 전륜과 후륜을 제동하는 휠실린더(50)로 공급되어 제동이 이루어지게 된다.The hydraulic pressure generated by the operation of the master cylinder 6 is supplied to the ESC 40 through a pair of first and second hydraulic lines 8a and 8b, and the hydraulic pressure distributed from the ESC 40 controls the front wheel and the rear wheel. The brake is supplied to the wheel cylinder 50 for braking.

상기와 같은 마스터실린더(6)를 통한 회생제동시 페달(31)에는 페달시뮬레이터(20)를 통한 반력이 전달되고, 이러한 페달시뮬레이터(20)를 통한 반력으로 운전자는 페달답력을 느끼게 된다.When the regenerative braking through the master cylinder 6 as described above, the reaction force is transmitted to the pedal 31 through the pedal simulator 20, and the driver feels the pedal force by the reaction force through the pedal simulator 20.

이때, 솔레노이드(25)는 ECU(30)에 의해 온되어 인입로드(25a)가 인출된 상태(K)이고, 이로 인해 페달(31)에 연동되어 움직이는 입력로드(12)의 피스톤(13)에 구비되어진 스토퍼(14)는 상기 솔레노이드(25)의 인입로드(25a)에 의해 구속됨으로써 페달(31)의 스트로크 증가에 따라 이동될 수 없게된다.At this time, the solenoid 25 is turned on by the ECU 30 and the inlet rod 25a is drawn out, thereby causing the piston 13 of the input rod 12 to move in conjunction with the pedal 31. The stopper 14 provided is restricted by the inlet rod 25a of the solenoid 25 so that the stopper 14 cannot be moved as the stroke of the pedal 31 increases.

이에 따라, 페달시뮬레이터(20)는 페달(31)에 연동되어 움직이는 입력로드(12)의 피스톤(13)이 가하는 힘을 직접 받지만, 상기 피스톤(13)의 전진이동을 차단하게 된다.Accordingly, the pedal simulator 20 directly receives the force applied by the piston 13 of the input rod 12 moving in conjunction with the pedal 31, but blocks the forward movement of the piston 13.

상기와 같은 상태에서 페달(31)의 스트로크 진행에 따라 더욱 밀려나는 피스톤(13)이 가압로드(22)에 의해 지지된 탄성체(23)를 가압하게 되고, 상기 탄성체(23)는 탄성영역을 넘어서는 가압력에서 피스톤(13)쪽으로 반력을 전달하게 된다.In the above state, the piston 13, which is pushed further as the stroke of the pedal 31 progresses, pressurizes the elastic body 23 supported by the pressure rod 22, and the elastic body 23 extends beyond the elastic region. The reaction force is transmitted from the pressing force to the piston 13.

상기 탄성체(23)로부터 피스톤(13)에 전달되는 반력은 이에 연결된 입력로드(12)로 전달되고, 상기 입력로드(12)로 전달된 반력은 이에 연결되어진 페달(31)로 전달됨으로써 운전자는 페달답력을 느낄수 있게 된다.The reaction force transmitted from the elastic body 23 to the piston 13 is transmitted to the input rod 12 connected thereto, and the reaction force transmitted to the input rod 12 is transmitted to the pedal 31 connected thereto, thereby allowing the driver to pedal. You can feel the power.

도 3은 본 실시예에 따른 제동유압발생장치를 적용한 전동부스터 방식 제동장치의 페일-세이프(Fail-Safe)의 작동상태를 나타낸다.Figure 3 shows the operating state of the fail-safe (Fail-Safe) of the electric booster-type braking device to which the braking hydraulic pressure generating device according to the present embodiment.

도시된 바와 같이, 전기적인 페일(Fail)시 전동 부스터(1)의 구동이 멈추고 동시에 솔레노이드(25)의 오프로 인입로드(25a)는 인입된 상태로 전환되어진다.As shown, the drive of the electric booster 1 is stopped at the time of the electrical fail and at the same time, the inlet rod 25a is switched to the retracted state by turning off the solenoid 25.

상기와 같이 솔레노이드(25)의 인입로드(25a)에 의한 구속이 없게 되면, 페달(31)에 연동되어 움직이는 입력로드(12)의 피스톤(13)에 구비되어진 스토퍼(14)는 아무런 구속 없이 페달(31)의 스트로크 증가에 따라 이동될 수 있게된다.When there is no restriction by the inlet rod 25a of the solenoid 25 as described above, the stopper 14 provided in the piston 13 of the input rod 12 moving in conjunction with the pedal 31 is pedaled without any restriction. It can be moved in accordance with the increase in the stroke of 31.

이에 따라, 페달시뮬레이터(20)는 페달(31)에 연동되어 움직이는 입력로드(12)의 피스톤(13)이 가하는 힘을 직접 받아 이동됨으로써, 상기 페달시뮬레이터(20)가 전동부스터(1)를 직접 작동시켜주게 된다.Accordingly, the pedal simulator 20 is directly moved by the force applied by the piston 13 of the input rod 12 moving in conjunction with the pedal 31, so that the pedal simulator 20 directly drives the electric booster 1. It will work.

상기와 같은 페달시뮬레이터(20)의 상태에서는 페달(31)의 스트로크 진행으로 더욱 밀려나는 피스톤(13)을 통해 탄성체(23)가 리턴스프링(24)을 압축하면서 이동되고, 상기 탄성체(23)의 이동은 가압로드(22)를 전동부스터(1)쪽으로 밀어주게 된다.In the state of the pedal simulator 20 as described above, the elastic body 23 is moved while compressing the return spring 24 through the piston 13 which is pushed further by the stroke of the pedal 31, and the elastic body 23 The movement pushes the pressure rod 22 toward the electric booster 1.

그러므로 상기 전동부스터(1)쪽에선 스크류-너트 구조의 진퇴이동기(4)가 가압력을 받게 되고, 상기 진퇴이동기(4)는 스크류-너트구조로 인해 전진이동되어진다.Therefore, on the electric booster 1 side, the screw-nut structure of the retractor 4 is pressed, and the retractor 4 is moved forward by the screw-nut structure.

즉, 페달(31)의 스트로크가 이에 연결된 연결로드(12)와 피스톤(13)을 통해 페달시뮬레이터(20)로 전달되어 페달시뮬레이터(20)를 밀어내고, 밀려나는 페달시뮬레이터(20)는 전동부스터(1)의 진퇴이동기(4)에 힘을 가해 진퇴이동기(4)를 전진이동시켜 줌으로써, 전원이 차단된 전동부스터(1)에서도 마스터실린더(6)를 가압하는 가압력을 발생시킬 수 있게 된다.That is, the stroke of the pedal 31 is transmitted to the pedal simulator 20 through the connecting rod 12 and the piston 13 connected thereto to push the pedal simulator 20, and the pedal simulator 20 pushed out is an electric booster. By applying the force to the advance mover 4 of (1) to move the advance mover 4 forward, it is possible to generate a pressing force to pressurize the master cylinder 6 even in the electric booster 1 in which the power is cut off.

상기와 같이 전원이 차단된 전동부스터(1)로부터 가압력을 받은 마스터실린더(6)에선 피스톤이동체(7)의 전진이동이 일어나고, 상기 피스톤이동체(7)의 전진이동으로 마스터실린더(6)에는 유압이 형성됨으로써 제1?2배출구(8a,8b)를 통해 로 ESC(40)로 공급되고, 상기 ESC(40)에서 분배되어진 유압은 전륜과 후륜을 제동하는 휠실린더(50)로 공급되어 제동이 이루어짐으로써 페일-세이프(Fail-Safe)를 구현할 수 있게 된다.In the master cylinder (6) subjected to the pressing force from the electric booster (1) with the power cut off as described above, the forward movement of the piston moving body (7) occurs, the hydraulic movement to the master cylinder (6) by the forward movement of the piston moving body (7) This is formed to be supplied to the furnace ESC 40 through the first and second outlets 8a and 8b, and the hydraulic pressure distributed from the ESC 40 is supplied to the wheel cylinders 50 for braking the front wheels and the rear wheels. By doing so, it is possible to implement fail-safe.

한편, 페달(31)의 입력이 없으면 피스톤(13)을 통한 가압력도 없어져 페달시뮬레이터(20)는 더 이상 전동부스터(1)쪽으로 밀려나지 않게 되고, 외부의 힘이 작용하지 않는 페달시뮬레이터(20)에는 단지 리턴스프링(24)의 탑성복원력 만 작용함으로써, 페달시뮬레이터(20)는 초기 상태로 복귀되어진다.On the other hand, if there is no input of the pedal 31, the pressing force through the piston 13 is also lost, the pedal simulator 20 is no longer pushed toward the electric booster 1, the pedal simulator 20 that no external force acts on The pedal simulator 20 is returned to its initial state by acting only the torsional restoring force of the return spring 24.

페달시뮬레이터(20)의 초기 상태로 복귀는 페달시뮬레이터(20)에 의해 밀려났던 진퇴이동기(4)도 복귀시켜 전동부스터(1)를 초기 상태로 복귀시켜줌으로써, 마스터실린더(6)에서는 유압의 발생이 없게 된다.The return to the initial state of the pedal simulator 20 also returns the forward and backward mover 4 pushed by the pedal simulator 20 to return the electric booster 1 to the initial state, thereby generating hydraulic pressure in the master cylinder 6. There will be no.

상기와 같이 본 실시예에 따른 제동유압발생장치는 페달(31)의 스트로크에 따라 요구되는 제동압력을 산출하는 ECU(30)를 통해 제어되는 전동부스터(1)로 구동되어 유압을 발생시키는 1개의 마스터실린더(6)와, 페달(31)에 의해 밀려나면서 페달(31)쪽으로 반력을 전달하고 상기 전동부스터(1)의 페일(Fail)시 상기 마스터실린더(6)를 작동시켜 페일-세이프(Fail-Safe)를 구현하는 페달시뮬레이터(20)로 구성됨으로써, 전동부스터 방식 제동장치가 1개의 마스터실린더(6)로도 회생제동과 페일-세이프(Fail-Safe)를 구현할 수 있고 솔레노이드 밸브의 미사용으로 구조를 단순화하고 제조원가도 절감할 수 있게 된다.
As described above, the braking hydraulic pressure generating apparatus according to the present embodiment is driven by an electric booster 1 controlled through the ECU 30 that calculates the braking pressure required according to the stroke of the pedal 31 to generate hydraulic pressure. It is pushed by the master cylinder 6 and the pedal 31 and transmits reaction force toward the pedal 31, and when the electric booster 1 fails, the master cylinder 6 is operated to fail-safe. -By using the pedal simulator 20 which implements "Safe", the electric booster type braking device can realize regenerative braking and fail-safe with one master cylinder 6, and it is structured by not using solenoid valve. Simplify and reduce manufacturing costs.

1 : 전동부스터 2 : 모터
3 : 커넥터 4 : 진퇴이동기
5 : 오일리저버 6 : 마스터실린더
7 : 피스톤이동체 8a,8b : 제1?2배출구
10 : 페달실린더 11,21 : 실린더하우징
12 : 입력로드 13 : 피스톤
14 : 스토퍼 20 : 페달시뮬레이터
22 : 가압로드 23 : 탄성체
24 : 리턴스프링 25 : 솔레노이드
25a : 인입로드
30 : ECU 31 : 페달
32 : 페달센서 40 : ESC
50 : 휠실린더 1: electric booster 2: motor
3: connector 4: forward and backward mover
5: Oil reservoir 6: Master cylinder
7: Piston moving body 8a, 8b: 1st-2nd outlet
10: pedal cylinder 11,21: cylinder housing
12: input rod 13: piston
14: stopper 20: pedal simulator
22: pressure rod 23: elastic body
24: return spring 25: solenoid
25a: incoming load
30: ECU 31: Pedal
32: Pedal sensor 40: ESC
50: wheel cylinder

Claims (7)

페달의 스트로크에 따라 요구되는 제동압력을 산출하는 ECU를 통해 제어되어 동력을 발생시키는 전동부스터와;
상기 전동부스터를 통한 작동으로 유압을 발생시키는 마스터실린더와;
상기 페달의 입력으로 밀려나는 이동거리가 구속되어 상기 페달쪽으로 반력을 전달하고, 상기 전동부스터의 페일(Fail)시 상기 마스터실린더에서 유압이 발생되도록 상기 페달의 스트로크에 따라 밀려나 상기 전동부스터를 작동시켜 페일-세이프(Fail-Safe)를 구현하는 페달시뮬레이터;
를 포함해 구성되어진 것을 특징으로 하는 다기능 제동유압발생장치.
An electric booster controlled by an ECU for calculating a braking pressure required according to the stroke of the pedal to generate power;
A master cylinder generating hydraulic pressure by the electric booster;
The movement distance pushed by the input of the pedal is constrained to transmit the reaction force toward the pedal, and when the electric booster fails, the electric booster is pushed according to the stroke of the pedal to generate hydraulic pressure in the master cylinder. A pedal simulator for implementing fail-safe;
Multifunctional braking hydraulic pressure generator, characterized in that configured to include.
청구항 1에 있어서, 상기 전동부스터는 상기 ECU를 통해 제어되고 구동되는 모터와, 커넥터에 결합되어 상기 모터의 회전을 상기 마스터실린더를 가압하는 직선이동으로 전환시켜주는 진퇴이동기로 구성되어진 것을 특징으로 하는 다기능 제동유압발생장치.
The method of claim 1, wherein the electric booster is composed of a motor that is controlled and driven through the ECU, and the advance and mover coupled to the connector to convert the rotation of the motor into a linear movement for pressing the master cylinder, characterized in that Multifunctional braking hydraulic generator.
청구항 1에 있어서, 상기 마스터실린더는 상기 전동부스터를 통해 전진이동되어 유압을 형성하고, 형성된 유압을 제1?2배출구로 배출시켜주는 피스톤이동체를 갖춘 것을 특징으로 하는 다기능 제동유압발생장치.
The multifunctional brake hydraulic pressure generating device of claim 1, wherein the master cylinder includes a piston moving body which moves forward through the electric booster to form hydraulic pressure, and discharges the formed hydraulic pressure to the first and second outlets.
청구항 1에 있어서, 상기 페달시뮬레이터는 상기 페달과 함께 움직이는 상기 피스톤의 구속시 이동을 차단하고, 상기 피스톤의 구속 해제시 이동을 허용하는 이동구속부재와;
상기 이동구속부재에 의한 이동구속시 상기 피스톤을 통해 가압되어 상기 페달쪽으로 전달되는 반력을 상기 피스톤으로 전달하고, 상기 이동구속부재에 의한 이동구속해제시 상기 피스톤과 함께 밀려나 상기 전동부스터을 작동시켜 주는 반력형성부재;
로 구성된 것을 특징으로 하는 다기능 제동유압발생장치.
The pedal simulator of claim 1, further comprising: a movement restraining member configured to block movement during restraint of the piston moving together with the pedal and to allow movement when restraining the piston;
Reaction force pressurized through the piston to transfer the reaction force to the pedal when the movement is restricted by the movement restraint member, and is pushed together with the piston to release the movement restraint by the movement restraint member to operate the electric booster. Forming member;
Multifunctional braking hydraulic pressure generator, characterized in that consisting of.
청구항 4에 있어서, 상기 피스톤은 상기 페달에 연결되어진 입력로드로 상기 페달의 움직임을 추종하는 것을 특징으로 하는 다기능 제동유압발생장치.
The multifunctional brake hydraulic pressure generating device of claim 4, wherein the piston follows a movement of the pedal by an input rod connected to the pedal.
청구항 4에 있어서, 상기 이동구속부재는 상기 피스톤과 함께 이동되는 스토퍼와, 인입로드의 인출시 상기 스토퍼를 구속해 상기 피스톤의 움직임을 구속하는 솔레노이드로 구성되어진 것을 특징으로 하는 다기능 제동유압발생장치.
The multifunctional braking hydraulic pressure generating device of claim 4, wherein the moving restraining member comprises a stopper moving together with the piston, and a solenoid that restrains the stopper when the inlet rod is pulled out to restrain the movement of the piston.
청구항 4에 있어서, 상기 반력형성부재는 직선이동되는 가압로드에 지지되고 상기 피스톤에 의해 밀려나는 가압력을 받는 탄성체와, 상기 탄성체를 탄발지지하는 리턴스프링으로 구성되어진 것을 특징으로 하는 다기능 제동유압발생장치.
The multifunctional braking hydraulic pressure generating device of claim 4, wherein the reaction force forming member comprises an elastic body supported by a linearly moving pressure rod and pushed by the piston, and a return spring supporting the elastic body. .
KR1020100107232A 2010-10-29 2010-10-29 Multi Function Breaking Pressure Generating Device KR101660047B1 (en)

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KR20140059661A (en) * 2012-11-08 2014-05-16 현대모비스 주식회사 Brake for vehicle
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