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KR101105148B1 - Hydraulic brake system using engine power - Google Patents

Hydraulic brake system using engine power Download PDF

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Publication number
KR101105148B1
KR101105148B1 KR1020060036666A KR20060036666A KR101105148B1 KR 101105148 B1 KR101105148 B1 KR 101105148B1 KR 1020060036666 A KR1020060036666 A KR 1020060036666A KR 20060036666 A KR20060036666 A KR 20060036666A KR 101105148 B1 KR101105148 B1 KR 101105148B1
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hydraulic
engine
power
valve
hydraulic pump
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KR20070104983A (en
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독고종훈
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주식회사 만도
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T13/745—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 a hydraulic system, e.g. a 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
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in 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
    • B60T8/32—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
    • B60T8/4018—Pump units characterised by their drive mechanisms

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

Abstract

본 발명의 목적은 유압 펌프를 구동하기 위해 엔진의 동력을 이용하고 유압 라인에 설치한 개폐밸브를 제어하여 엔진 동력을 단속함에 의해 기존보다 저렴하게 구현할 수 있도록 한 엔진 동력을 이용한 유압 브레이크 장치를 제공함에 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a hydraulic brake apparatus using an engine power that can be implemented at a lower cost than the conventional one by using an engine power to drive a hydraulic pump and controlling an on / off valve installed in a hydraulic line to control the engine power. Is in.

이를 위해 본 발명은 마스터 실린더와 휠 실린더 사이를 연결하는 유압 라인에 유압 펌프를 구비하는 유압 브레이크 장치에 있어서, 차량에 탑재된 엔진; 상기 유압 라인에서 분기되는 분기 라인; 상기 분기 라인의 중도에 설치하여 유압을 공급 또는 차단하는 개폐 밸브; 상기 분기 라인에 연결되는 리조버; 상기 개폐 밸브를 개방 또는 폐쇄시키기 위한 스위치; 상기 리조버 내부에 유입되는 유압에 따라 상기 엔진의 동력을 상기 유압 펌프로 전달하기 위한 동력 전달부재; 및 상기 유압 펌프의 구동이 필요한 경우 상기 개폐밸브를 개방하기 위하여 상기 스위치를 제어하는 ECU를 포함하는 것을 특징으로 한다.To this end, the present invention provides a hydraulic brake device having a hydraulic pump in a hydraulic line connecting between a master cylinder and a wheel cylinder, comprising: an engine mounted on a vehicle; A branch line branched from the hydraulic line; An on / off valve installed in the middle of the branch line to supply or shut off hydraulic pressure; A reservoir connected to the branch line; A switch for opening or closing the on / off valve; A power transmission member for transmitting power of the engine to the hydraulic pump according to the hydraulic pressure introduced into the reservoir; And an ECU controlling the switch to open the on / off valve when driving of the hydraulic pump is necessary.

Description

엔진 동력을 이용한 유압 브레이크 장치{Hydraulic Brake System Using An Engine Power}Hydraulic Brake System Using An Engine Power}

도 1은 종래의 전동 모터를 이용한 유압 브레이크 장치의 구성도이다.1 is a configuration diagram of a hydraulic brake device using a conventional electric motor.

도 2는 본 발명에 따른 엔진 동력을 이용한 유압 브레이크 장치의 구성도이다.2 is a configuration diagram of a hydraulic brake apparatus using engine power according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20 : 클러치 22 : 엔진20: clutch 22: engine

30 : 배터리 31 : 스위치30: battery 31: switch

32 : ECU 33 : 개폐 밸브32: ECU 33: on-off valve

본 발명은 엔진의 동력을 이용하여 유압 펌프를 구동하는 경우에 있어서, 유압 라인의 개폐밸브를 제어하여 엔진 동력을 단속하기 위한 엔진 동력을 이용한 유압 브레이크 장치에 관한 것이다.The present invention relates to a hydraulic brake apparatus using engine power for controlling the on / off valve of a hydraulic line to control engine power when driving a hydraulic pump using power of an engine.

일반적으로 제동 시 바퀴의 잠김을 방지하기 위한 안티 록 브레이크 시스템(ABS)의 액압 회로는 도 1에 도시한 바와 같이, 전기 모터(9)의 동력을 이용하여 펌핑 동작을 수행하는 유압 펌프(4)를 구비한다. 전기 모터(9)는 직류 모터로서 ECU(12)의 제어에 따라 스위치 되는 모터 구동용 FET(11)를 통하여 배터리(10)의 전원을 공급받아 구동된다.In general, the hydraulic circuit of the anti-lock brake system ABS prevents the locking of the wheel during braking, as shown in FIG. 1. The hydraulic pump 4 performs a pumping operation by using the power of the electric motor 9. It is provided. The electric motor 9 is driven by being supplied with the power of the battery 10 through the motor driving FET 11 which is switched under the control of the ECU 12 as a DC motor.

운전자가 브레이크 페달(1a)을 작동하는 경우, 마스터 실린더(1)에서 제동 압력이 형성되어 유압 라인(8)을 통하여 휠 실린더에 제공된다. 이 제동 압력은 휠 실린더(2)의 입구측에 설치된 노말 오픈 솔레노이드 밸브(6)와 출구측에 설치된 노말 클로즈 솔레노이드 밸브(7)에 의해 휠 실린더(2)에 전달된다. 그리고 휠 실린더측으로부터 유출되는 작동 오일을 일시 저장하는 저압 어큐뮬레이터(LPA)(5)에는 유압 펌프(4)가 연결되고, 그 유압 펌프(4)는 전기 모터(9)의 구동에 의해 저압 어큐뮬레이터(5)에 저장된 오일을 펌핑하여 고압 어큐뮬레이터(HPA)(3)로 전달한다. 펌프(4)의 작동으로 인하여 발생하는 과도한 압력맥동은 고압 어큐뮬레이터(3)를 거치면서 감쇠된다.When the driver operates the brake pedal 1a, a braking pressure is formed in the master cylinder 1 and provided to the wheel cylinder via the hydraulic line 8. This braking pressure is transmitted to the wheel cylinder 2 by the normal open solenoid valve 6 provided on the inlet side of the wheel cylinder 2 and the normal closed solenoid valve 7 provided on the outlet side. And a hydraulic pump 4 is connected to the low pressure accumulator (LPA) 5 which temporarily stores the working oil which flows out from the wheel cylinder side, The hydraulic pump 4 is driven by the electric motor 9, and the low pressure accumulator ( The oil stored in 5) is pumped and delivered to the high pressure accumulator (HPA) (3). Excessive pressure pulsations caused by the operation of the pump 4 are attenuated through the high pressure accumulator 3.

ECU(12)는 도시하지 않은 속도 센서를 통해 측정된 차량 속도 정보에 기초하여 ABS 제어 모드에 해당하는지를 판단하고, ABS 제어 모드인 경우 ECU(12)는 휠 실린더의 제동 압력을 목표 압력에 도달하도록 밸브(6)(7)의 동작을 제어한다. 또한 ECU(12)는 FET(11)를 턴 온시켜 전기 모터(9)를 통전한다. 전기 모터(9)의 구동에 따라 모터 축(9a)의 일단에 형성된 편심 회전자(9b)가 동작하고, 이 편심 회전자에 의해 유압 펌프(4)에서 펌핑이 이루어진다.The ECU 12 determines whether it corresponds to the ABS control mode based on the vehicle speed information measured through a speed sensor (not shown), and in the ABS control mode, the ECU 12 causes the brake pressure of the wheel cylinder to reach the target pressure. The operation of the valves 6 and 7 is controlled. In addition, the ECU 12 turns on the FET 11 to energize the electric motor 9. As the electric motor 9 is driven, the eccentric rotor 9b formed at one end of the motor shaft 9a operates, and the eccentric rotor pumps the hydraulic pump 4.

종래 기술에 따른 유압 브레이크 장치에서는 전기 모터의 동력을 이용하여 유압 펌프를 구동하는 방식을 적용하고 있다. 그런데 전기 모터를 턴 온/오프하기 위해 사용하는 모터 구동용 FET를 스위치하기 위해서 높은 구동 전류를 사용하므로 고온 발열하는 현상이 있고, 고가의 부품이기 때문에 경제적 부담이 된다.In the hydraulic brake apparatus according to the prior art, a method of driving a hydraulic pump using power of an electric motor is applied. However, since a high driving current is used to switch the motor driving FET used to turn on / off the electric motor, there is a phenomenon of high temperature heat generation and an expensive part because it is an expensive component.

본 발명은 상기와 같은 문제를 고려하여 창안한 것으로, 본 발명의 목적은 유압 펌프를 구동하기 위해 엔진의 동력을 이용하고 유압 라인에 설치한 개폐밸브를 제어하여 엔진 동력을 단속함에 의해 기존보다 저렴하게 구현할 수 있도록 한 엔진 동력을 이용한 유압 브레이크 장치를 제공함에 있다.The present invention was conceived in consideration of the above problems, and an object of the present invention is to use the power of the engine to drive the hydraulic pump and to control the on-off valve installed in the hydraulic line to control the engine power is cheaper than conventional It is to provide a hydraulic brake device using an engine power so that it can be implemented.

상기 목적을 달성하기 위한 본 발명은, 마스터 실린더와 휠 실린더 사이를 연결하는 유압 라인에 유압 펌프를 구비하는 유압 브레이크 장치에 있어서, 차량에 탑재된 엔진; 상기 유압 라인에서 분기되는 분기 라인; 상기 분기 라인의 중도에 설치하여 유압을 공급 또는 차단하는 개폐 밸브; 상기 분기 라인에 연결되는 리조버; 상기 개폐 밸브를 개방 또는 폐쇄시키기 위한 스위치; 상기 리조버 내부에 유입되는 유압에 따라 상기 엔진의 동력을 상기 유압 펌프로 전달하기 위한 동력 전달부재; 및 상기 유압 펌프의 구동이 필요한 경우 상기 개폐밸브를 개방하기 위하여 상기 스위치를 제어하는 ECU를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a hydraulic brake apparatus including a hydraulic pump in a hydraulic line connecting between a master cylinder and a wheel cylinder, comprising: an engine mounted on a vehicle; A branch line branched from the hydraulic line; An on / off valve installed in the middle of the branch line to supply or shut off hydraulic pressure; A reservoir connected to the branch line; A switch for opening or closing the on / off valve; A power transmission member for transmitting power of the engine to the hydraulic pump according to the hydraulic pressure introduced into the reservoir; And an ECU controlling the switch to open the on / off valve when driving of the hydraulic pump is necessary.

상기 개폐 밸브는 노말 클로즈 솔레노이드 밸브이다.The on-off valve is a normal closed solenoid valve.

상기 스위치는 상기 노말 클로즈 솔레노이드 밸브를 구동하기 위한 FET이다.The switch is a FET for driving the normal closed solenoid valve.

상기 동력 전달부재는 상기 엔진의 크랭크에 연결되는 동력 전달축, 상기 동력 전달축의 일측에 연결된 클러치, 상기 클러치를 통해 전달되는 동력에 따라 상기 유압 펌프를 구동시키기 위한 편심 회전자를 포함한다.The power transmission member includes a power transmission shaft connected to the crank of the engine, a clutch connected to one side of the power transmission shaft, and an eccentric rotor for driving the hydraulic pump according to the power transmitted through the clutch.

이하, 본 발명에 따른 바람직한 실시 예를 첨부 도면에 따라 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 엔진 동력을 이용한 유압 브레이크 장치는, 도 2에 도시한 바와 같이, 마스터 실린더(24)와 휠 실린더(25)를 연결하는 유압 라인(18)에 노말 오픈 솔레노이드 밸브(16)와 노말 클로즈 솔레노이드 밸브(17)를 설치한다. 운전자가 브레이크 페달(24a)을 작동하는 경우, 마스터 실린더(24)에서 형성된 제동 압력은 휠 실린더(25)의 입구측에 설치된 노말 오픈 솔레노이드 밸브(16)와 출구측에 설치된 노말 클로즈 솔레노이드 밸브(17)에 의해 휠 실린더(25)에 전달된다. 저압 어큐뮬레이터(15)는 휠 실린더(25)로부터 유출되는 작동 오일을 일시 저장하며, 유압 펌프(14)는 저압 어큐뮬레이터(15)에 저장된 오일을 펌핑하여 고압 어큐뮬레이터(13)로 전달한다. 상기와 같은 구성은 기존과 같다.In the hydraulic brake apparatus using the engine power according to the present invention, as shown in FIG. 2, a normal open solenoid valve 16 and a normal are connected to a hydraulic line 18 connecting the master cylinder 24 and the wheel cylinder 25. Install a closed solenoid valve (17). When the driver operates the brake pedal 24a, the braking pressure generated in the master cylinder 24 is controlled by the normal open solenoid valve 16 provided at the inlet side of the wheel cylinder 25 and the normal closed solenoid valve 17 provided at the outlet side. Is transmitted to the wheel cylinder 25 by The low pressure accumulator 15 temporarily stores the working oil flowing out of the wheel cylinder 25, and the hydraulic pump 14 pumps the oil stored in the low pressure accumulator 15 and delivers it to the high pressure accumulator 13. The configuration as described above is the same as before.

본 발명의 특징적인 구성은 엔진(22)의 동력을 이용하여 유압 펌프(14)를 구동하는 것으로, 엔진(22)의 크랭크(23)에 리조버(34)의 동력 전달축(35)이 연결된다. 엔진이 구동하면 동력 전달축(35)이 같이 회전한다.A characteristic configuration of the present invention is to drive the hydraulic pump 14 by using the power of the engine 22, the power transmission shaft 35 of the reservoir 34 is connected to the crank 23 of the engine 22 do. When the engine is driven, the power transmission shaft 35 rotates together.

동력 전달축은 리조버(34) 내부에 수용된다. 고압의 유압 라인(18)에서 분기되는 분기 라인(19)에 리조버(34)의 내부를 연결하고, 분기 라인(19)의 중도에 개폐밸브(33)를 설치한다. 개폐밸브(33)는 평상시 클로즈 상태를 유지하는 노말 클로즈 솔레노이드밸브를 사용한다.The power transmission shaft is housed inside the reservoir 34. The inside of the reservoir 34 is connected to the branch line 19 branched from the high pressure hydraulic line 18, and the opening-closing valve 33 is provided in the middle of the branch line 19. As shown in FIG. The on-off valve 33 uses a normal closed solenoid valve that normally maintains a closed state.

개폐 밸브(33)는 ECU(32)의 제어에 따라 스위치 되는 스위치부(31)를 통해 배터리(30)의 전원을 공급받아 분기 라인(19)의 유로를 개방하거나 차단한다.The open / close valve 33 receives the power of the battery 30 through the switch unit 31 switched under the control of the ECU 32 to open or block the flow path of the branch line 19.

스위치부(31)는 저 전류를 사용하는 솔레노이드용 FET를 사용한다.The switch section 31 uses a solenoid FET that uses a low current.

개폐 밸브(33)를 개방하는 경우 유압이 리조버(34)의 내부로 유입되고, 이에 따라 동력 전달축(35)이 전진 이동하여 클러치(20)를 밀착시켜서 엔진의 회전 동력이 편심 회전자(21)를 매개로 유압 펌프(14)에 전달되도록 한다. 이때 유압 펌프(14)가 작동한다.When the on-off valve 33 is opened, the hydraulic pressure flows into the inside of the reservoir 34, and accordingly, the power transmission shaft 35 moves forward to bring the clutch 20 into close contact with the clutch 20 so that the rotational power of the engine is eccentric rotor ( 21) to the hydraulic pump (14). At this time, the hydraulic pump 14 operates.

ABS 제어 모드가 끝나고 운전자가 페달(24a)에서 발을 떼면 리조버(34)의 복원 스프링(도 2 참조)에 의해 동력 전달축(35)이 후퇴하여 유압이 리조버 내부에서 마스터 실린더측으로 복귀한다.When the ABS control mode ends and the driver releases the pedal 24a, the power transmission shaft 35 is retracted by the restoring spring of the reservoir 34 (see FIG. 2), and the hydraulic pressure is returned from the inside of the reservoir to the master cylinder side. .

상기와 같이 구성된 본 발명의 동작을 설명한다.The operation of the present invention configured as described above will be described.

ECU(32)는 도시하지 않은 속도 센서를 통해 측정된 차량 속도 정보에 기초하여 ABS 제어 모드에 해당하는지를 판단하고, ABS 제어 모드인 경우 ECU(32)는 휠 실린더의 제동 압력을 목표 압력에 도달하도록 밸브(16)(17)의 동작을 제어하며, 스위치(31)를 턴 온시킨다. 이에 따라 개폐밸브(33)는 스위치(31)를 통해 배터리(30) 전원을 공급받아 분기 라인(19)의 유로를 개방한다. 이에 따라 유압이 리조버(34)에 유입되어 엔진(22)의 크랭크(23)에 연결되어 회전하는 동력 전달축(35)을 이동시켜 클러치(20)를 밀착시킨다. 이에 따라 클러치(20)를 통해 엔진 동력을 전달받는 편심 회전자(21)에 의해 유압 펌프(14)가 구동한다.The ECU 32 determines whether it corresponds to the ABS control mode based on the vehicle speed information measured through a speed sensor (not shown), and in the ABS control mode, the ECU 32 causes the braking pressure of the wheel cylinder to reach the target pressure. The operation of the valves 16 and 17 is controlled, and the switch 31 is turned on. Accordingly, the open / close valve 33 receives the battery 30 power through the switch 31 to open the flow path of the branch line 19. Accordingly, the hydraulic pressure flows into the reservoir 34 and is connected to the crank 23 of the engine 22 to move the rotating power transmission shaft 35 to bring the clutch 20 into close contact. Accordingly, the hydraulic pump 14 is driven by the eccentric rotor 21 which receives engine power through the clutch 20.

이후, ABS 제어 모드를 완료하고 운전자가 페달(24a)에서 발을 떼면 리조버(34)의 복원 스프링에 의해 유압이 마스터 실린더측으로 복귀한다.Thereafter, when the ABS control mode is completed and the driver releases the pedal 24a, the hydraulic pressure is returned to the master cylinder side by the restoring spring of the reservoir 34.

이상과 같이 본 발명에 따르면, 기존과 같이 고가의 전기 모터를 사용하지 않고도 리조버와 클러치 그리고 분기 라인 등으로 구성되는 동력 전달 부재를 매개로 엔진 동력을 이용하여 유압 펌프를 구동할 수 있고, 분기 라인에 설치한 개폐밸브로서 솔레노이드 밸브를 적용할 수 있어 이 솔레노이드 밸브를 제어하기 위한 스위치로서 저가의 FET를 사용할 수 있는 등 기존보다 경제적 부담을 줄일 수 있다.As described above, according to the present invention, a hydraulic pump can be driven using engine power through a power transmission member composed of a reservoir, a clutch, a branch line, and the like, without using an expensive electric motor as in the prior art. Solenoid valves can be applied as on / off valves installed in the line, which can reduce the economic burden, such as using low-cost FETs as switches for controlling the solenoid valves.

Claims (4)

마스터 실린더와 휠 실린더 사이를 연결하는 유압 라인에 유압 펌프를 구비하는 유압 브레이크 장치에 있어서,In the hydraulic brake device having a hydraulic pump in the hydraulic line connecting between the master cylinder and the wheel cylinder, 차량에 탑재된 엔진; 상기 유압 라인에서 분기되는 분기 라인; 상기 분기 라인의 중도에 설치하여 유압을 공급 또는 차단하는 개폐 밸브; 상기 분기 라인에 연결되는 리조버; 상기 개폐 밸브를 개방 또는 폐쇄시키기 위한 스위치; 상기 리조버 내부에 유입되는 유압에 따라 상기 엔진의 동력을 상기 유압 펌프로 전달하기 위한 동력 전달부재; 및 상기 유압 펌프의 구동이 필요한 경우 상기 개폐밸브를 개방하기 위하여 상기 스위치를 제어하는 ECU를 포함하는 것을 특징으로 하는 엔진 동력을 이용한 유압 브레이크 장치.An engine mounted on a vehicle; A branch line branched from the hydraulic line; An on / off valve installed in the middle of the branch line to supply or shut off hydraulic pressure; A reservoir connected to the branch line; A switch for opening or closing the on / off valve; A power transmission member for transmitting power of the engine to the hydraulic pump according to the hydraulic pressure introduced into the reservoir; And an ECU controlling the switch to open the on / off valve when driving of the hydraulic pump is necessary. 제1항에 있어서, 상기 개폐 밸브는 노말 클로즈 솔레노이드 밸브인 것을 특징으로 하는 엔진 동력을 이용한 유압 브레이크 장치.The hydraulic brake apparatus using engine power according to claim 1, wherein the on-off valve is a normal closed solenoid valve. 제2항에 있어서, 상기 스위치는 상기 노말 클로즈 솔레노이드 밸브를 구동하기 위한 FET인 것을 특징으로 하는 엔진 동력을 이용한 유압 브레이크 장치.3. The hydraulic brake apparatus according to claim 2, wherein the switch is an FET for driving the normal closed solenoid valve. 제1항에 있어서, 상기 동력 전달부재는 상기 엔진의 크랭크에 연결되는 동력 전달축, 상기 동력 전달축의 일측에 연결된 클러치, 상기 클러치를 통해 전달되는 동력에 따라 상기 유압 펌프를 구동시키기 위한 편심 회전자를 포함하는 것을 특징으로 하는 엔진 동력을 이용한 유압 브레이크 장치.The eccentric rotor according to claim 1, wherein the power transmission member is a power transmission shaft connected to a crank of the engine, a clutch connected to one side of the power transmission shaft, and an eccentric rotor for driving the hydraulic pump according to the power transmitted through the clutch. Hydraulic brake device using the engine power, characterized in that it comprises a.
KR1020060036666A 2006-04-24 2006-04-24 Hydraulic brake system using engine power Active KR101105148B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH082401A (en) * 1994-06-22 1996-01-09 Toyo Umpanki Co Ltd Brake device of vehicle
KR19980049130A (en) * 1996-12-19 1998-09-15 박병재 Engine Driven Brake System

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH082401A (en) * 1994-06-22 1996-01-09 Toyo Umpanki Co Ltd Brake device of vehicle
KR19980049130A (en) * 1996-12-19 1998-09-15 박병재 Engine Driven Brake System

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