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KR101629027B1 - Hydraulic Electric Control Unit of Electric Control Break System - Google Patents

Hydraulic Electric Control Unit of Electric Control Break System Download PDF

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Publication number
KR101629027B1
KR101629027B1 KR1020100040713A KR20100040713A KR101629027B1 KR 101629027 B1 KR101629027 B1 KR 101629027B1 KR 1020100040713 A KR1020100040713 A KR 1020100040713A KR 20100040713 A KR20100040713 A KR 20100040713A KR 101629027 B1 KR101629027 B1 KR 101629027B1
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KR
South Korea
Prior art keywords
circuit
vacuum
control unit
secondary circuit
hecu
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KR1020100040713A
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Korean (ko)
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KR20110121218A (en
Inventor
안성기
박성준
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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
    • 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
    • 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
    • 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
    • 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
    • B60T13/24—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 gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed
    • 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
    • B60T13/24—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 gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
    • 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
    • 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
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • 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
    • 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
    • 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
    • B60T8/58—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 responsive to speed and another condition or to plural speed conditions

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명의 ABS/ESC용 HECU(4,Hydraulic Electric Control Unit)에 유압회로 와 더불어 어큐뮬레이터(7)에서 펌프(6)의 입구포트(Inlet Port)쪽으로 이어진 2차 회로(9)와 마스터실린더(1)쪽으로 이어진 회로에 연결된 진공회로를 더 형성해줌으로써, 유압회로내 오일주입을 위한 블리딩(Bleeding)공정시 2차 회로(9)쪽 진공공정 생략으로 HECU 생산사이클(Cycle)의 소요시간을 단축하고, 2차 회로(9)쪽 오일이 제동작용시 유입될 수 있어 조립라인에서 요구되는 모터(5)의 작동 횟수를 크게 줄이므로 HECU의 진동소음을 줄이고 내구성 품질도 향상되는 특징을 갖는다.The secondary circuit 9 and the master cylinder 1 (not shown) connected to the inlet port of the pump 6 from the accumulator 7 together with the hydraulic circuit are connected to the ABS / ESC HECU (4) The vacuum process for the secondary circuit 9 is omitted in the bleeding process for the oil injection in the hydraulic circuit to shorten the time required for the HECU production cycle, The oil on the side of the secondary circuit 9 can be introduced during the braking operation, and the number of times of operation of the motor 5 required in the assembly line is greatly reduced, thereby reducing vibration noise of the HECU and improving durability quality.

Description

전자제어식 제동장치의 통합유압제어유닛{Hydraulic Electric Control Unit of Electric Control Break System} Technical Field [0001] The present invention relates to an integrated hydraulic control unit of an electronically controlled braking device,

본 발명은 전자제어식 제동장치에 관한 것으로, 특히 유압회로내 블리딩(Bleeding) 공정을 없애 생산 사이클(Cycle) 소요시간을 줄인 전자제어식 제동장치의 통합유압제어유닛에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronically controlled braking device, and more particularly, to an integrated hydraulic control unit of an electronically controlled braking device that eliminates a bleeding process in a hydraulic circuit and reduces a production cycle time.

일반적으로 바퀴잠김 현상을 방지하는 ABS(Anti Lock Brake System)나, 선회 한계성능 초과시 차량 거동을 안정화시키는 ESC(Electronic Stability Control)와 같은 전자제어식 제동장치가 적용됨으로써, 차량의 안전성을 크게 향상한다.In general, safety of the vehicle is greatly improved by applying an ABS (Anti-Lock Brake System) that prevents the wheel locking phenomenon and an electronically controlled braking device such as ESC (Stability Control) that stabilizes the vehicle behavior when the swing limit performance is exceeded.

전자제어식 제동장치는 마스터실린더와 휠실린더사이의 유압회로내 유압흐름을 통합제어하도록 HECU(Hydraulic Electric Control Unit)를 이용하며, ABS/ESC나 ESC에 적용된 HECU의 일례는 1개의 펌프하우징에 모터 및 펌프와 더불어 솔레노이드밸브와 체크밸브 및 어큐뮬레이터와 압력센서등이 장착되어 유압회로를 구성함으로써, ABS/EBD/TCS/ESC과 같은 전자제어식 제동장치에서 요구하는 유압제어를 구현한다. The electronically controlled braking system uses a HECU (Hydraulic Electric Control Unit) to control the hydraulic flow in the hydraulic circuit between the master cylinder and the wheel cylinder. One example of the HECU applied to the ABS / ESC or ESC is a motor In addition to the pump, a solenoid valve, check valve, accumulator and pressure sensor are mounted to constitute a hydraulic circuit to realize the hydraulic control required by electronically controlled braking devices such as ABS / EBD / TCS / ESC.

상기와 같은 HECU는 자동차 인라인에서 조립된 후 오일 주입공정을 거친 다음 양산되는 공정을 거친다.The HECU as described above is assembled in an automobile inline, then subjected to an oil injection process, and then mass-produced.

하지만, 현재 양산되어 적용되는 HECU는 오일주입공정을 수행하기 전 생산사이클(Cycle) 소요시간을 증가시키는 여러 단계의 공정을 더 필요로 한다.However, HECU, which is currently applied in mass production, requires several steps to increase the cycle time before oil injection.

이는 HECU내 유압회로에 오일을 주입해 양산됨에 기인한 것으로, 이로 인해 오일주입을 위한 블리딩(Bleeding) 공정수행 전 어큐뮬레이터와 펌프의 입구포트(Inlet Port)사이로 형성된 2차 회로쪽 진공공정을 수행할 수밖에 없고, 이러한 공정추가로 HECU 생산사이클(Cycle)의 소요시간이 증가되는 주요 원인으로 작용된다.This is due to the fact that oil is injected into the hydraulic circuit in the HECU, which leads to a secondary circuit side vacuum process between the accumulator and the inlet port of the pump before the bleeding process for oil injection. And this process is a major cause of the increase in the time required for the HECU production cycle.

또한, 2차 회로에 오일을 주입하기 위해선 오일주입전, HECU 어큐뮬레이터내 오일이 남아 있는 것을 방지하기 위해 차량 주행특정모드마다 모두 수행될 수밖에 없고, 이는 반복적인 모터 구동을 요구함으로써 진동과 소음발생이 심하고 내구성도 약화시키는 원인으로 작용될 소지도 갖는다.
In order to prevent oil from remaining in the HECU accumulator before injecting the oil to inject the oil into the secondary circuit, it is inevitable that the oil is injected into the secondary circuit. This requires repeated motor driving, And it is also likely to act as a cause of weakening durability.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, HECU(Hydraulic Electric Control Unit)의 유압회로에 진공을 형성할 때 2차 회로쪽도 함께 진공을 형성함으로써, 2차 회로쪽 오일주입을 위한 블리딩(Bleeding)공정을 없애 생산사이클(Cycle) 소요시간을 줄일 수 있는 통합유압제어유닛을 제공하는데 목적이 있다.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a hydraulic circuit of a hydraulic electric control unit (HECU) And to provide an integrated hydraulic control unit capable of reducing a production cycle time by eliminating a bleeding process.

상기와 같은 목적을 달성하기 위한 본 발명은, 마스터실린더와 차륜제동부사이로 이어진 유압회로를 형성하고, 어큐뮬레이터와 펌프쪽으로 이어진 2차 회로를 형성한 통합유압제어유닛에 있어서,According to an aspect of the present invention, there is provided an integrated hydraulic control unit in which a hydraulic circuit is formed between a master cylinder and a wheel braking portion, and a secondary circuit connected to an accumulator and a pump is formed,

상기 2차 회로와 상기 마스터실린더쪽으로 이어지는 회로를 연결한 적어도 1개 이상의 진공회로를 포함한 것을 특징으로 한다.
And at least one vacuum circuit connecting the secondary circuit and a circuit leading to the master cylinder.

상기 진공회로는 상기 어큐뮬레이터쪽으로 더 근접한 위치에서 2차 회로에 연결한 첫 번째 진공회로와, 상기 펌프쪽으로 더 근접한 위치에서 2차 회로에 연결한 두 번째 진공회로로 구성한다.
The vacuum circuit comprises a first vacuum circuit connected to the secondary circuit at a position closer to the accumulator side and a second vacuum circuit connected to the secondary circuit at a position closer to the pump side.

상기 진공회로는 상기 2차 회로에서 이어져 상기 마스터실린더쪽에 이어진 회로에 연결된 진공라인과, 상기 진공라인에 설치된 밸브로 구성한다.
The vacuum circuit is composed of a vacuum line connected to a circuit connected to the master cylinder in the secondary circuit and a valve installed in the vacuum line.

상기 밸브는 일방향흐름을 형성하는 ECV(Evacuation Check Valve)이며, 진공흡입공정에 따른 저압으로 열린다. The valve is an evacuation check valve (ECV) that forms a one-way flow and opens at a low pressure according to the vacuum suction process.

상기 두 번째 진공회로는 상기 첫 번째 진공회로가 상기 마스터실린더쪽으로 이어진 위치에서 상기 첫 번째 진공회로에 연결한다.
The second vacuum circuit connects to the first vacuum circuit at a location where the first vacuum circuit leads to the master cylinder.

이러한 본 발명에 의하면, HECU(Hydraulic Electric Control Unit)의 양산시 2차 회로쪽에 대한 블리딩(Bleeding)공정을 없애 단축된 생산사이클(Cycle)소요시간을 통한 원가절감 효과를 갖는다. According to the present invention, the bleeding process for the secondary circuit side of the HECU (Hydraulic Electric Control Unit) is mass-produced, and the manufacturing cost is reduced through the shortened production cycle time.

2차 회로쪽 오일을 제동작용이 이루어질 때 주입시켜줄 수 있어, 어큐뮬레이터쪽을 위한 모터 작동 횟수를 크게 줄여 진동소음과 내구성 품질도 향상하는 효과도 갖는다.
The secondary circuit side oil can be injected when the braking action is performed, and the vibration frequency and the durability quality can be improved by greatly reducing the number of motor operations for the accumulator side.

도 1은 본 발명에 따른 통합유압제어유닛을 적용한 전자제어식 제동장치의 유압회로 구성도이며, 도 2는 본 발명에 따른 통합유압제어유닛의 유압회로내 2차회로쪽 진공형성공정도이다.FIG. 1 is a hydraulic circuit diagram of an electronically controlled braking apparatus to which an integrated hydraulic control unit according to the present invention is applied, and FIG. 2 is a vacuum forming process chart for a secondary circuit in a hydraulic circuit of an integrated hydraulic control unit according to the present invention.

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.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

도 1은 본 발명에 따른 통합유압제어유닛을 적용한 전자제어식 제동장치의 유압회로 구성도이다.1 is a hydraulic circuit diagram of an electronically controlled braking apparatus to which an integrated hydraulic control unit according to the present invention is applied.

도시된 바와 같이, 전자제어식 제동장치는 마스터실린더(1)와 제1·2차륜제동부(2)사이로 유압회로를 형성하고, 제동시 유압흐름을 통합제어하는 HECU(4, Hydraulic Electric Control Unit)를 갖춘다.As shown in the figure, the electronically controlled braking device includes a hydraulic control unit (HECU) 4 that forms a hydraulic circuit between the master cylinder 1 and the first and second wheel braking sections 2 and integrally controls the flow of hydraulic pressure during braking, .

본 실시예에 따른 전자제어식 제동장치는 ABS(Anti Lock Brake System)나 ESC(Electronic Stability Control), 급발진이나 급가속시 과대한 슬립방지를 위해 엔진구동력을 조절하는 TCS(Traction Control System) 또는 차량 중량 변화에 따라 전류 및 후륜의 제동력 배분을 전자적으로 최적화하는 EBD(Electronic Brake Force Distribution)이다.The electronically controlled braking device according to the present embodiment is provided with an ABS (Anti-Lock Brake System) or ESC (Electronic Stability Control), a TCS (Traction Control System) for controlling the engine driving force for preventing excessive slip during sudden acceleration or rapid acceleration, Electronic Brake Force Distribution (EBD), which electronically optimizes the braking force distribution of the current and the rear wheels according to changes.

상기 제1차륜제동부(2)는 상기 HECU(4)의 유압회로에 이어진 우측전륜휠실린더(2a)와 좌측후륜휠실린더(2b)를 갖추고, 상기 제2차륜제동부(3)는 상기 HECU(4)의 유압회로에 이어진 좌측전륜휠실린더(3a)와 우측후륜휠실린더(3b)를 갖추며, 이는 통상적인 구성이다.The first wheel braking section 2 includes a right front wheel cylinder 2a and a left rear wheel wheel cylinder 2b connected to the hydraulic circuit of the HECU 4 and the second wheel braking section 3 is connected to the HECU 4, A left front wheel wheel cylinder 3a and a right rear wheel wheel cylinder 3b which are connected to the hydraulic circuit of the engine 4 and have a typical configuration.

상기 HECU(4)는 모터(5)와 펌프(6) 및 어큐뮬레이터(7)와 전자개폐되는 다수의 밸브(8)들을 설치한 유압회로를 갖추며, 이러한 유압회로는 제1차륜제동부(2)쪽으로 이어지는 회로와 제2차륜제동부(3)쪽으로 이어지는 회로로 한쌍을 이루어 펌프하우징을 통해 형성된다.The HECU 4 is provided with a hydraulic circuit in which a motor 5, a pump 6 and a plurality of valves 8 that are electronically opened and closed with the accumulator 7 are provided. The hydraulic circuit includes a first wheel braking section 2, And a circuit leading to the second wheel braking section (3) are formed through the pump housing.

상기 어큐뮬레이터(7)는 유압회로와 연결되어 제동상태에 따른 오일보관 및 배출작용을 하고, 어큐뮬레이터(7)에서 펌프(6)의 입구포트(Inlet Port)쪽으로 이어진 2차 회로(9)를 형성한다.The accumulator 7 is connected to a hydraulic circuit so as to store and discharge oil according to the braking state and form a secondary circuit 9 extending from the accumulator 7 toward the inlet port of the pump 6 .

본 실시예에 따른 HECU(4)에는 제동시 작용하는 유압회로와 더불어 자동차 인라인 조립양산시 블리딩(Bleeding)공정을 필요로 하지 않는 진공회로를 더 형성하며, 상기 진공회로는 어큐뮬레이터(7)에서 펌프(6)의 입구포트(Inlet Port)쪽으로 이어진 2차 회로(9)를 이용해 형성한다.The HECU 4 according to the present embodiment is provided with a hydraulic circuit which operates during braking and a vacuum circuit which does not require a bleeding process in mass production of an automobile in-line assembly. The vacuum circuit is connected to the pump 6 connected to the inlet port (inlet port).

상기 진공회로는 적어도 2곳의 위치로 형성되며 일례로, 한쪽을 2차 회로(9)에 연결하고 그 반대쪽을 마스터실린더(1)쪽으로 이어진 회로에 연결한 위치로 첫번째 진공회로를 형성하고, 한쪽을 2차 회로(9)에 연결하고 그 반대쪽을 마스터실린더(1)쪽으로 이어진 회로에 연결한 위치로 두번째 진공회로를 형성한다.The vacuum circuit is formed at at least two positions. For example, a first vacuum circuit is formed at a position where one side is connected to the secondary circuit 9 and the other side is connected to the circuit leading to the master cylinder 1, Is connected to the secondary circuit (9), and the other side thereof is connected to a circuit leading to the master cylinder (1), thereby forming a second vacuum circuit.

상기 첫번째 진공회로는 어큐뮬레이터(7)쪽으로 더 근접한 위치에서 2차 회로(9)에 연결하고, 상기 두번째 진공회로는 펌프(6)의 입구포트(Inlet Port)쪽으로 더 근접한 위치에서 2차 회로(9)에 연결한다.The first vacuum circuit is connected to the secondary circuit 9 at a position closer to the accumulator 7 and the second vacuum circuit is connected to the secondary circuit 9 at a position closer to the inlet port of the pump 6 ).

본 실시예에 따른 상기 첫번째 진공회로는 2차 회로(9)에서 이어져 마스터실린더(1)쪽에 연결된 회로로 제1진공라인(10)을 연결하고, 상기 제1진공라인(10)에 제1밸브(11)를 설치해 구성한다.The first vacuum circuit according to the present embodiment is connected to the first vacuum line 10 through a circuit connected to the master cylinder 1 in the secondary circuit 9 and connected to the first vacuum line 10 through a first valve (11).

상기 제1밸브(11)는 일방향흐름을 형성하는 ECV(Evacuation Check Valve)이며, 자동차 조립라인상에서 블리딩(Bleeding)공정전 유압회로내 진공공정시 2차 회로(9)내 공기배출과 잔존오일배출을 위해 진공흡입공정에 따른 저압에서 작동한다.The first valve 11 is an ECV (Evacuation Check Valve) forming a one-way flow. The first valve 11 is an ECV (Evacuation Check Valve) forming a one-way flow, Lt; RTI ID = 0.0 > vacuum < / RTI >

상기 진공흡입공정에 따른 저압은 HECU의 설계사양에 따라 결정한다. The low pressure due to the vacuum suction process is determined according to the design specifications of HECU.

본 실시예에 따른 상기 두번째 진공회로는 2차 회로(9)에서 이어져 마스터실린더(1)쪽에 연결된 제2진공라인(20)을 연결하고, 상기 제2진공라인(20)에 제2밸브(21)를 설치해 구성한다.The second vacuum circuit according to the present embodiment is connected to a second vacuum line 20 connected to the master cylinder 1 in the secondary circuit 9 and connected to the second vacuum line 20 via a second valve 21 ).

상기 제2밸브(21)는 일방향흐름을 형성하는 BCV(Bleeding Check Valve)이다.The second valve 21 is a bleeding check valve (BCV) forming a one-way flow.

상기 두번째 진공회로의 제2진공라인(20)은 상기 첫번째 진공회로의 제1진공라인(10)쪽에 연결되며, 연결시에는 상기 첫번째 진공회로의 제1진공라인(10)에 설치된 제1밸브(11)의 뒤쪽으로 연결한다.The second vacuum line 20 of the second vacuum circuit is connected to the first vacuum line 10 side of the first vacuum circuit and is connected to the first vacuum line 10 of the first vacuum circuit 11).

하지만, 필요에 따라 상기 첫번째 진공회로의 제1진공라인(10)과 별도로 마스터실린더(1)쪽으로 연결될 수 있다.However, it may be connected to the master cylinder 1 separately from the first vacuum line 10 of the first vacuum circuit, if necessary.

도 2는 본 발명의 제1실시예에 따른 2차 회로쪽 진공형성공정을 나타낸다.Fig. 2 shows a vacuum forming process for the secondary circuit according to the first embodiment of the present invention.

이는, 자동차 인라인 조립공정에서 모터(5)와 펌프(6) 및 어큐뮬레이터(7)와 전자개폐되는 다수의 밸브(8)들을 펌프하우징에 설치해 HECU(4)를 조립한 후, 최종적인 제품양산을 위한 오일주입전 진공공정을 수행하는 과정이며, 본 실시예와 같이 진공회로를 2개를 한쌍으로 형성함으로써, 2차 회로(9)에 대한 진공공정을 보다 빠르게 구현할 수 있다.This is because the HECU 4 is assembled by installing the motor 5, the pump 6 and the accumulator 7 and a plurality of valves 8 that are electronically opened and closed in the pump housing in the automobile inline assembly process, The vacuum process for the secondary circuit 9 can be implemented more quickly by forming two pairs of vacuum circuits as in the present embodiment.

모터(5)를 가동해 유압회로내 진공압을 형성하면 도시된 바와 같이, 어큐뮬레이터(7)에서 펌프(6)의 입구포트(Inlet Port)쪽으로 이어진 2차 회로(9)와 첫번째 진공회로와 두 번째 진공회로에도 함께 진공압을 형성한다.When the motor 5 is operated to form the vacuum pressure in the hydraulic circuit, the secondary circuit 9 and the first vacuum circuit, which are connected from the accumulator 7 to the inlet port of the pump 6, Vacuum pressure is also formed in the second vacuum circuit.

진공압이 제1진공라인(10)과 제2진공라인(20)쪽에 진공흡입공정에 따른 저압이 걸릴 때, 제1·2밸브(11,21)가 열려 어큐뮬레이터(7)와 2차 회로(9)쪽 공기가 빠져나가면서 동시에 잔존된 오일도 함께 2차 회로(9)로 빠져나간다.When the vacuum pressure is applied to the first vacuum line 10 and the second vacuum line 20 by the vacuum suction process, the first and second valves 11 and 21 are opened and the accumulator 7 and the secondary circuit 9) side air escapes to the secondary circuit 9 together with the oil remaining at the same time.

상기와 같이 진공압을 형성한 제1진공라인(10)과 제2진공라인(20)을 통해 마스터실린더(1)쪽으로 배출됨으로써, 본 실시예에선 자동차 조립라인상에서 오일주입을 위한 블리딩(Bleeding)공정시 2차회로(9)를 제외한 HECU내 유압회로에 대한 오일주입이 이루어지고, 2차 회로(9)에 대한 공정생략으로 HECU 생산사이클(Cycle)의 소요시간을 단축할 수 있다. The oil is discharged to the master cylinder 1 through the first vacuum line 10 and the second vacuum line 20 formed with the vacuum pneumatic pressure as described above. In this embodiment, bleeding for oil injection on the automobile assembly line is performed, The oil is injected into the hydraulic circuit in the HECU excluding the secondary circuit 9 during the process and the time required for the HECU production cycle can be shortened by omitting the process for the secondary circuit 9. [

자동차 조립라인상에서 오일이 주입되지 못한 2차 회로(9)는 제동작용이 이루어질 때 오일을 유입함으로써, 2차 회로(9)쪽 진공공정이 요구될 때에 비해 모터(5)의 작동 횟수를 크게 줄이므로 HECU의 진동소음을 줄이고 내구성 품질도 향상할 수 있다.
The secondary circuit 9 in which the oil is not injected on the car assembly line inflows the oil when the braking action is performed so that the number of operations of the motor 5 is greatly reduced compared to when the vacuum process on the secondary circuit 9 is required Therefore, vibration noise of HECU can be reduced and durability quality can be improved.


1 : 마스터실린더 2,3 : 제1·2차륜제동부
2a : 우측전륜휠실린더 2b : 좌측후륜휠실린더
3a : 좌측전륜휠실린더 3b : 우측후륜휠실린더
4 : HECU(Hydraulic Electric Control Unit)
5 : 모터 6 : 펌프
7 : 어큐뮬레이터 8 : 밸브
9 : 2차회로 10,20 : 제1·2진공라인
11,21 : 제1·2밸브
1: Master cylinder 2, 3: First and second wheel braking parts
2a: Right front wheel wheel cylinder 2b: Left rear wheel cylinder
3a: Left front wheel cylinder 3b: Right rear wheel cylinder
4: Hydraulic Electric Control Unit (HECU)
5: motor 6: pump
7: accumulator 8: valve
9: Secondary circuit 10, 20: 1st and 2nd vacuum lines
11 and 21: First and second valves

Claims (5)

마스터실린더와 차륜제동부사이로 이어진 유압회로를 형성하고, 어큐뮬레이터와 펌프쪽으로 이어진 2차 회로를 형성한 통합유압제어유닛에 있어서,
상기 2차 회로와 상기 마스터실린더쪽으로 이어지는 회로를 연결한 적어도 1개 이상의 진공회로를 포함하고;
상기 진공회로는 상기 어큐뮬레이터쪽으로 더 근접한 위치에서 2차 회로에 연결한 첫 번째 진공회로와, 상기 펌프쪽으로 더 근접한 위치에서 2차 회로에 연결한 두 번째 진공회로로 구성한 것을 특징으로 하는 전자제어식 제동장치의 통합유압제어유닛.
An integrated hydraulic control unit in which a hydraulic circuit extending between a master cylinder and a wheel braking portion is formed, and a secondary circuit connected to the accumulator and the pump is formed,
At least one vacuum circuit connecting the secondary circuit and a circuit leading to the master cylinder;
Wherein the vacuum circuit comprises a first vacuum circuit connected to the secondary circuit at a position closer to the accumulator side and a second vacuum circuit connected to the secondary circuit at a position closer to the pump side. Integrated hydraulic control unit.
삭제delete 청구항 1에 있어서, 상기 진공회로는 상기 2차 회로에서 이어져 상기 마스터실린더쪽에 이어진 회로에 연결된 진공라인과, 상기 진공라인에 설치된 밸브로 구성된 것을 특징으로 하는 전자제어식 제동장치의 통합유압제어유닛.

The integrated hydraulic control unit of claim 1, wherein the vacuum circuit comprises a vacuum line connected to a circuit connected to the master cylinder in the secondary circuit, and a valve installed in the vacuum line.

청구항 3에 있어서, 상기 밸브는 일방향흐름을 형성하는 ECV(Evacuation Check Valve)이며, 진공흡입공정에 따른 저압에서 열리는 것을 특징으로 하는 전자제어식 제동장치의 통합유압제어유닛.
4. The integrated hydraulic control unit of claim 3, wherein the valve is an evacuation check valve (ECV) forming a one-way flow and opens at a low pressure according to a vacuum suction process.
청구항 1에 있어서, 상기 두 번째 진공회로는 상기 첫 번째 진공회로가 상기 마스터실린더쪽으로 이어진 위치에서 상기 첫 번째 진공회로에 연결되는 것을 특징으로 하는 전자제어식 제동장치의 통합유압제어유닛.The integrated hydraulic control unit of claim 1, wherein said second vacuum circuit is connected to said first vacuum circuit at a location where said first vacuum circuit is directed towards said master cylinder.
KR1020100040713A 2010-04-30 2010-04-30 Hydraulic Electric Control Unit of Electric Control Break System KR101629027B1 (en)

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KR100261918B1 (en) * 1997-09-22 2000-07-15 밍 루 Brake oil changer
KR100402275B1 (en) * 2000-01-22 2003-10-22 주식회사 만도 Anti-lock brake system
KR100694007B1 (en) * 2002-06-03 2007-03-12 주식회사 만도 Brake traction control system for automobile

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KR100261918B1 (en) * 1997-09-22 2000-07-15 밍 루 Brake oil changer
KR100402275B1 (en) * 2000-01-22 2003-10-22 주식회사 만도 Anti-lock brake system
KR100694007B1 (en) * 2002-06-03 2007-03-12 주식회사 만도 Brake traction control system for automobile

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