KR20180067357A - Brake device for vehicle - Google Patents

Brake device for vehicle Download PDF

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Publication number
KR20180067357A
KR20180067357A KR1020160168991A KR20160168991A KR20180067357A KR 20180067357 A KR20180067357 A KR 20180067357A KR 1020160168991 A KR1020160168991 A KR 1020160168991A KR 20160168991 A KR20160168991 A KR 20160168991A KR 20180067357 A KR20180067357 A KR 20180067357A
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South Korea
Prior art keywords
flow path
oil
valve
path portion
unit
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KR1020160168991A
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Korean (ko)
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KR102620006B1 (en
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안성기
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현대모비스 주식회사
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Priority to KR1020160168991A priority Critical patent/KR102620006B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • 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
    • B60T8/4031—Pump units characterised by their construction or mounting
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

The present invention relates to a brake device for a vehicle, which includes: at least one first flow path portion connected to an oil pressurizing portion for amplifying the pressure of oil and opened and closed by a first valve portion; a second flow path portion connecting the first valve portion and an electric pump portion; a third flow path portion connecting the oil pressurizing portion and the electric pump portion; at least one fourth flow path portion connected to the second flow path portion and opened and closed by a fourth valve portion; a fifth flow path portion connected to the fourth valve portion and opened and closed by a fifth valve portion; a sixth flow path portion connected to the fifth flow path portion and a wheel cylinder portion for providing a braking force to a wheel; and a seventh flow path portion connected to the fifth valve portion and the third flow path portion. Manufacturing costs can be saved by reducing the number of components while maintaining braking force.

Description

차량용 제동장치{BRAKE DEVICE FOR VEHICLE}[0001] BRAKE DEVICE FOR VEHICLE [0002]

본 발명은 차량용 제동장치에 관한 것으로서, 보다 상세하게는 밸브 개수를 줄이면서 제동력을 유지하여 제작비용을 절감할 수 있는 차량용 제동장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a braking device for a vehicle, and more particularly, to a braking device for a vehicle capable of reducing the number of valves and maintaining the braking force, thereby reducing manufacturing costs.

일반적으로 제동장치는 차량의 속도를 감속하거나 정지시키는 장치이다. 통상적으로 운전자가 브레이크 페달을 밟으면, 마스터실린더에서 유압이 증폭되어 각 바퀴에 제동력을 제공하는 휠실린더에 오일이 공급된다. 그 외, 페달의 가압이 감지됨에 따라 모터펌프가 구동되면, 유압이 증폭되어 휠실린더에 도달될 수 있다.Generally, a braking device is a device that decelerates or stops the speed of a vehicle. Normally, when the driver depresses the brake pedal, oil is supplied to the wheel cylinders in which the hydraulic pressure is amplified in the master cylinder to provide braking force to the wheels. In addition, when the motor pump is driven as the pressure of the pedal is sensed, the hydraulic pressure can be amplified to reach the wheel cylinder.

최근에는 자동 긴급 제동(AEB;autonomous emergency braking) 기능이 차량에 구현되어 차량의 안정성을 향상시키고 있다. 자동 긴급 제동이란, 차량이 각종 센서를 통해 주변 상황을 인지하여 제동을 실시하는 것을 의미한다. 자동 긴급 제동 기능이 수행되면, 모터펌프가 브레이크 오일을 강제 흡입하여 증폭된 유압을 휠실린더에 공급한다. 이때, 모터펌프가 구동되면, 저장부에 저장되어 있는 브레이크 오일이 마스터실린더와 브레이크 배관을 통해 모터펌프에 강제 유입된다.In recent years, autonomous emergency braking (AEB) has been implemented in vehicles to improve vehicle stability. The automatic emergency braking means that the vehicle recognizes the surrounding situation through various sensors and performs braking. When the automatic emergency braking function is performed, the motor pump forcibly sucks the brake fluid and supplies the amplified hydraulic pressure to the wheel cylinder. At this time, when the motor pump is driven, the brake oil stored in the storage portion is forced into the motor pump through the master cylinder and the brake pipe.

종래에는 마스터실린더에 저장된 오일 제어를 위해 별도의 밸브가 필요하고, 유압 완화를 위해 마스터실린더 외에 별도의 저장탱크가 필요로 하므로, 제조비용이 증가하고 설계가 복잡하다는 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.Conventionally, a separate valve is required for controlling the oil stored in the master cylinder, and a separate storage tank is required in addition to the master cylinder for relieving hydraulic pressure. This increases the manufacturing cost and complicates the design. Therefore, there is a need to improve this.

본 발명의 배경기술은 대한민국 공개특허공보 제2011-0065845호(2011.06.16 공개, 발명의 명칭 : 차량의 제동 시스템)에 개시되어 있다.BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2011-0065845 (published on Jun. 16, 2011, entitled " Vehicle Brake System).

본 발명은 상기와 같은 문제점을 개선하기 위해 안출된 것으로서, 밸브 개수를 줄이면서 제동력을 유지하여 제작비용을 절감할 수 있는 차량용 제동장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a braking device for a vehicle which can reduce the number of valves while maintaining the braking force, thereby reducing manufacturing costs.

본 발명에 따른 차량용 제동장치는: 오일의 압력을 증폭시키는 오일가압부에 연결되고, 제1밸브부에 의해 유로가 개폐되는 하나 이상의 제1유로부; 상기 제1밸브부와 전동펌프부를 연결하는 제2유로부; 상기 오일가압부와 상기 전동펌프부를 연결하는 제3유로부; 상기 제2유로부와 연결되고, 제4밸브부에 의해 유로가 개폐되는 하나 이상의 제4유로부; 상기 제4밸브부에 연결되고, 제5밸브부에 의해 유로가 개폐되는 제5유로부; 상기 제5유로부에 연결되고, 바퀴에 제동력을 제공하는 휠실린더부와 연결되는 제6유로부; 및 상기 제5밸브부에 연결되고, 상기 제3유로부와 연결되는 제7유로부;를 포함하는 것을 특징으로 한다.A braking system for a vehicle according to the present invention comprises: at least one first flow path portion connected to an oil pressurizing portion for amplifying a pressure of oil and having a flow path opened and closed by a first valve portion; A second flow path connecting the first valve unit and the electric pump unit; A third flow path portion connecting the oil pressure portion and the electric pump portion; At least one fourth flow path portion connected to the second flow path portion and having a flow path opened and closed by a fourth valve portion; A fifth flow path portion connected to the fourth valve portion and having a flow path opened and closed by a fifth valve portion; A sixth flow path connected to the fifth flow path portion and connected to a wheel cylinder portion for providing a braking force to the wheel; And a seventh flow path unit connected to the fifth valve unit and connected to the third flow path unit.

상기 오일가압부는 운전자에 의해 조작되는 페달부; 상기 페달부에 의해 구동되어 오일 압력을 증폭시키는 마스터실린더부; 및 상기 마스터실린더부에 연통되어 오일이 저장되는 오일저장부;를 포함하는 것을 특징으로 한다.The oil pressurizing portion includes a pedal portion operated by a driver; A master cylinder part driven by the pedal part to amplify the oil pressure; And an oil reservoir communicated with the master cylinder unit to store oil therein.

상기 제1유로부는 상기 마스터실린더부에 연결되고, 상기 제3유로부는 상기 오일저장부에 연결되는 것을 특징으로 한다.The first flow path portion is connected to the master cylinder portion, and the third flow path portion is connected to the oil storage portion.

상기 제1밸브부와 상기 제4밸브부는 노멀오픈밸브이고, 상기 제5밸브부는 노멀클로즈밸브인 것을 특징으로 한다.Wherein the first valve unit and the fourth valve unit are normally open valves, and the fifth valve unit is a normally closed valve.

본 발명에 따른 차량용 제동장치는: 상기 제5유로부 또는 상기 제7유로부 중 어느 하나 이상에 배치되고, 상기 휠실린더부의 잔압을 유지하는 체크밸브부;를 더 포함하는 것을 특징으로 한다.The braking device for a vehicle according to the present invention may further include: a check valve portion disposed in at least one of the fifth passage portion and the seventh passage portion, the check valve portion retaining the residual pressure of the wheel cylinder portion.

본 발명에 따른 차량용 제동장치는 제3유로부가 오일저장부와 전동펌프부를 연결함으로써, 전동펌프부 구동시 오일저장부에 저장된 오일이 마스터실린더부를 우회하여 이동되어 유로 저항이 감소하고 오일 토출력이 향상될 수 있다.In the braking system for a vehicle according to the present invention, the third oil passage is connected to the oil reservoir and the electric pump, so that the oil stored in the oil reservoir is moved by bypassing the master cylinder during the operation of the electric pump, Can be improved.

본 발명에 따른 차량용 제동장치는 제3유로부에 밸브가 삭제되어 제조비용이 절감될 수 있다.The braking device for a vehicle according to the present invention can reduce the manufacturing cost by eliminating the valve in the third flow path portion.

본 발명에 따른 차량용 제동장치는 휠실린더부의 오일이 오일저장부로 이동되어 저장됨으로써, 별도의 어큐뮬레이터가 삭제되어 제조비용이 절감될 수 있다.In the braking system for a vehicle according to the present invention, since the oil of the wheel cylinder portion is moved to and stored in the oil reservoir, a separate accumulator is eliminated, thereby reducing the manufacturing cost.

도 1은 본 발명의 일 실시예에 따른 차량용 제동장치를 개략적으로 나타내는 도면이다.
도 2는 본 발명의 일 실시예에 따른 차량용 제동장치에서 체크밸브부가 배치된 위치를 개략적으로 나타내는 도면이다.
도 3은 본 발명의 일 실시예에 따른 차량용 제동장치에서 평상제동시 오일의 흐름을 개략적으로 나타내는 도면이다.
도 4는 본 발명의 일 실시예에 따른 차량용 제동장치에서 흡입모드를 개략적으로 나타내는 도면이다.
도 5는 본 발명의 일 실시예에 따른 차량용 제동장치에서 감압모드를 개략적으로 나타내는 도면이다.
도 6은 본 발명의 일 실시예에 따른 차량용 제동장치에 의한 시간 대비 휠실린더부의 압력을 개략적으로 나타내는 그래프이다.1 is a view schematically showing a braking system for a vehicle according to an embodiment of the present invention.
2 is a view schematically showing a position where a check valve is disposed in a braking system for a vehicle according to an embodiment of the present invention.
3 is a view schematically showing the flow of oil during normal braking in a braking system for a vehicle according to an embodiment of the present invention.
4 is a view schematically showing a suction mode in a vehicle braking device according to an embodiment of the present invention.
5 is a view schematically showing a decompression mode in a vehicle braking system according to an embodiment of the present invention.
6 is a graph schematically showing the pressure of the wheel cylinder part with respect to time by the vehicle braking device according to the embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 차량용 제동장치의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로써, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vehicle braking system according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시예에 따른 차량용 제동장치를 개략적으로 나타내는 도면이다. 도 1을 참조하면, 본 발명의 일 실시예에 따른 차량용 제동장치(1)는 제1유로부(10)와, 제2유로부(20)와, 제3유로부(30)와, 제4유로부(40)와, 제5유로부(50)와, 제6유로부60)와, 제7유로부(70)를 포함한다.1 is a view schematically showing a braking system for a vehicle according to an embodiment of the present invention. 1, a vehicular brake system 1 according to an embodiment of the present invention includes a first flow path portion 10, a second flow path portion 20, a third flow path portion 30, A fifth flow path portion 50, a sixth flow path portion 60), and a seventh flow path portion 70. The first flow path portion 40, the fifth flow path portion 50,

하나 이상의 제1유로부(10)는 오일의 압력을 증폭시키는 오일가압부(80)에 연결되어 오일을 안내한다. 제1유로부(10)는 제1밸브부(11)에 의해 유로가 개폐된다. 일 예로, 2개의 제1유로부(10)는 서로 분리되고, 각각의 제1유로부(10) 일단부는 오일가압부(80)와 연결될 수 있다. 그리고, 각각의 제1유로부(10) 타단부는 제1밸브부(11)와 연결될 수 있다.The at least one first flow path portion 10 is connected to the oil pressurizing portion 80 for amplifying the pressure of the oil to guide the oil. The first flow path portion 10 is opened and closed by the first valve portion 11. For example, the two first flow paths 10 may be separated from each other, and one end of each first flow path portion 10 may be connected to the oil pressurization portion 80. The other end of each first flow path portion 10 may be connected to the first valve portion 11.

제2유로부(20)는 제1밸브부(11)와 전동펌프부(90)에 연결되어 오일을 안내한다. 일 예로, 제2유로부(20)는 일단부가 각각의 제1밸브부(11)에 연결되고, 타단부가 전동펌프부(90)에 연결될 수 있다. 전동펌프부(90)는 전원이 인가됨에 따라 오일을 강제로 공급하는 장치이며, 일반제동 및 차체 자세 제어 등을 위한 급제동시 오일을 공급할 수 있다.The second flow path portion 20 is connected to the first valve portion 11 and the electric pump portion 90 to guide the oil. For example, one end of the second flow path portion 20 may be connected to the first valve portion 11, and the other end portion may be connected to the electric pump portion 90. The electric pump unit 90 is a device for forcibly supplying oil according to the application of electric power, and can supply oil during sudden braking for normal braking and body posture control.

제3유로부(30)는 오일가압부(80)와 전동펌프부(90)에 연결되어 오일을 안내한다. 일 예로, 제3유로부(30)는 일단부가 오일가압부(80)에 연결되고, 타단부가 한 쌍으로 분기되어 전동펌프부(90)에 연결될 수 있다. 이러한 제3유로부(30)에는 유로를 개폐하기 위한 밸브를 필요로 하지 않는다.The third flow path portion 30 is connected to the oil pressure portion 80 and the electric pump portion 90 to guide the oil. For example, one end of the third flow path portion 30 may be connected to the oil pressure portion 80, and the other end portion may be branched into a pair and be connected to the electric pump portion 90. The third flow path portion 30 does not require a valve for opening and closing the flow path.

제4유로부(40)는 제2유로부(20)와 연결되어 오일을 안내한다. 제4유로부(40)는 제4밸브부(41)에 의해 유로가 개폐된다. 일 예로, 제4유로부(40)는 일단부가 각각의 제2유로부(20)에 연결될 수 있다. 제4유로부(40)의 타단부는 한 쌍으로 분기되어 제4밸브부(41)와 연결될 수 있다. 즉, 각각의 제4유로부(40)에 2개의 제4밸브부(41)가 배치되므로, 총 4개의 제4밸브부(41)가 사용될 수 있다.The fourth flow path portion 40 is connected to the second flow path portion 20 to guide the oil. The fourth flow path portion 40 is opened and closed by the fourth valve portion 41. For example, one end of the fourth flow path portion 40 may be connected to each of the second flow path portions 20. The other end of the fourth flow path portion 40 may be branched into a pair and be connected to the fourth valve portion 41. That is, since the four fourth valve portions 41 are disposed in each of the fourth flow path portions 40, a total of four fourth valve portions 41 can be used.

제5유로부(50)는 제4밸브부(41)에 연결되어 오일을 안내한다. 제5유로부(50)는 제5밸브부(51)에 의해 유로가 개폐된다. 일 예로, 제5유로부(50)는 일단부가 제4밸브부(41)에 각각 연결되고, 타단부가 제5밸브부(51)에 연결될 수 있다. 즉, 4개의 제5유로부(50) 각각에 제5밸브부(51)가 배치될 수 있다.The fifth flow path portion (50) is connected to the fourth valve portion (41) to guide the oil. The fifth flow path portion (50) is opened and closed by the fifth valve portion (51). For example, one end of the fifth flow path portion 50 may be connected to the fourth valve portion 41, and the other end portion may be connected to the fifth valve portion 51. That is, the fifth valve unit 51 may be disposed on each of the four fifth flow paths 50.

제6유로부(60)는 제5유로부(50)와 휠실린더부(100)에 연결되어 오일을 안내한다. 이러한 휠실린더부(100)는 바퀴에 제동력을 제공한다. 일 예로, 제6유로부(60)는 일단부가 제5유로부(50)에 각각 연결되고 타단부가 휠실린더부(100)에 각각 연결될 수 있다.The sixth flow path portion 60 is connected to the fifth flow path portion 50 and the wheel cylinder portion 100 to guide the oil. The wheel cylinder portion 100 provides a braking force to the wheel. For example, one end of the sixth flow path portion 60 may be connected to the fifth flow path portion 50, and the other end portion may be connected to the wheel cylinder portion 100, respectively.

제7유로부(70)는 제5밸브부(51)와 제3유로부(30)에 연결되어 오일을 안내한다. 일 예로, 각각의 제5밸브부(51)에 연결되는 한 쌍의 제7유로부(70)는 수렴되어 제3유로부(30)에 연결될 수 있다.The seventh channel portion 70 is connected to the fifth valve portion 51 and the third channel portion 30 to guide the oil. For example, the pair of seventh flow path portions 70 connected to the respective fifth valve portions 51 may be converged and connected to the third flow path portion 30.

본 발명의 일 실시예에 따른 오일가압부(80)는 페달부(81)와, 마스터실린더부(82)와, 오일저장부(83)를 포함한다. 페달부(81)는 운전자에 의해 조작되고, 마스터실린더부(82)는 페달부(81)에 의해 구동되어 오일 압력을 증폭시키며, 오일저장부(83)는 마스터실린더부(82)에 연통되어 오일이 저장된다.The oil pressurizing portion 80 according to an embodiment of the present invention includes a pedal portion 81, a master cylinder portion 82, and an oil reservoir portion 83. The master cylinder portion 82 is driven by the pedal portion 81 to amplify the oil pressure and the oil storage portion 83 is communicated with the master cylinder portion 82 Oil is stored.

일 예로, 페달부(81)는 운전석의 하부에 위치되어 운전자가 발로 밟을 수 있다. 운전자가 발로 페달부(81)를 밟으면, 페달부(81)가 마스터실린더부(82)를 가압하여 마스터실린더부(82)에 내장된 오일의 압력이 증폭될 수 있다. 오일저장부(83)는 마스터실린더부(82)와 직접 연통되어 오일의 이동이 가능하고, 오일 저장을 위한 공간이 형성되어, 마스터실린더부(82) 내부에 과도하게 오일이 저장되는 것을 방지할 수 있다.For example, the pedal portion 81 is located at the lower portion of the driver's seat and can be stepped on by the driver. When the driver presses the foot pedal portion 81, the pedal portion 81 presses the master cylinder portion 82, so that the pressure of the oil contained in the master cylinder portion 82 can be amplified. The oil reservoir 83 communicates directly with the master cylinder 82 to allow movement of the oil and a space for oil storage to prevent excess oil from being stored in the master cylinder 82 .

한편, 제1유로부(10)는 마스터실린더부(82)에 연결되고, 제3유로부(30)는 오일저장부(83)에 연결된다. 일 예로, 마스터실린더부(82)에 의해 압력이 상승한 오일은 제1유로부(10)로 이동될 수 있다.The first flow path portion 10 is connected to the master cylinder portion 82 and the third flow path portion 30 is connected to the oil storage portion 83. For example, the oil whose pressure has been increased by the master cylinder portion 82 can be moved to the first flow path portion 10. [

제1밸브부(11)와 제4밸브부(41)는 노멀오픈밸브이고, 제5밸브부(51)는 노멀클로즈밸브가 사용된다. 즉, 전원이 인가되지 않은면 제1밸브부(11)와 제4밸브부(41)는 유로를 개방하여 오일 이동을 허용하고, 전원이 인가되면 제1밸브부(11)와 제4밸브부(41)는 유로를 폐쇄하여 오일 이동을 제한할 수 있다. 그리고, 전원이 인가되지 않은면 제5밸브부(51)는 유로를 폐쇄하여 오일 이동을 제한하고, 전원이 인가되면 제5밸브부(51)는 유로를 개방하여 오일 이동을 허용할 수 있다.The first valve portion 11 and the fourth valve portion 41 are normally open valves, and the fifth valve portion 51 is a normally closed valve. That is, when the power is not applied, the first valve unit 11 and the fourth valve unit 41 open the flow path to allow oil movement, and when the power is applied, the first valve unit 11 and the fourth valve unit 41, (41) can restrict the oil movement by closing the oil passage. The fifth valve unit 51, which is not powered, closes the oil passage to restrict the oil movement. When the power source is applied, the fifth valve unit 51 opens the oil passage to permit oil movement.

도 2는 본 발명의 일 실시예에 따른 차량용 제동장치에서 체크밸브부가 배치된 위치를 개략적으로 나타내는 도면이다. 도 1과 도 2를 참조하면, 본 발명의 일 실시예에 따른 차량용 제동장치(1)는 체크밸브부(110)를 더 포함할 수 있다. 체크밸브부(110)는 제5유로부(50) 또는 제7유로부(70) 중 어느 하나 이상에 배치되고, 휠실린더부(100)의 잔압을 유지한다.2 is a view schematically showing a position where a check valve is disposed in a braking system for a vehicle according to an embodiment of the present invention. Referring to FIGS. 1 and 2, the vehicle braking apparatus 1 according to an embodiment of the present invention may further include a check valve unit 110. The check valve portion 110 is disposed in at least one of the fifth flow path portion 50 and the seventh flow path portion 70 to maintain the residual pressure of the wheel cylinder portion 100.

일 예로, 체크밸브부(110)는 제6유로부(60)와 제5밸브부(51) 사이에 위치되는 제5유로부(50)에 배치되거나, 제7유로부(70)에 배치될 수 있다. 그 외, 체크밸브부(110)는 제6유로부(60)와 제5밸브부(51) 사이에 위치되는 제5유로부(50)에 배치되고, 제7유로부(70)에 배치될 수 있다. 체크밸브부(110)는 제7유로부(70)에서 제5유로부(50)로의 오일 이동을 차단하고, 제5유로부(50)에서 제7유로부(70)로의 오일 이동을 허용할 수 있다. 이때, 오일이 일정압 이상이 되는 경우 오일 이동을 허용하여 휠실린더부(100)의 잔압을 유지할 수 있다.For example, the check valve unit 110 may be disposed in the fifth flow path unit 50 disposed between the sixth flow path unit 60 and the fifth valve unit 51, or disposed in the seventh flow path unit 70 . In addition, the check valve unit 110 is disposed in the fifth flow path unit 50 disposed between the sixth flow path unit 60 and the fifth valve unit 51, and is disposed in the seventh flow path unit 70 . The check valve unit 110 blocks oil movement from the seventh channel unit 70 to the fifth channel unit 50 and allows oil movement from the fifth channel unit 50 to the seventh channel unit 70 . At this time, when the oil becomes equal to or higher than a predetermined pressure, oil movement is allowed and the residual pressure of the wheel cylinder portion 100 can be maintained.

도 3은 본 발명의 일 실시예에 따른 차량용 제동장치에서 평상제동시 오일의 흐름을 개략적으로 나타내는 도면이다. 도 3을 참조하여 평상제동시 오일의 흐름을 설명하면 다음과 같다.3 is a view schematically showing the flow of oil during normal braking in a braking system for a vehicle according to an embodiment of the present invention. The flow of oil during normal braking will be described with reference to FIG.

평상제동시 운전자가 페달부(81)를 가압하면, 마스터실린더부(82)에서 압력이 증폭된 오일이 제1유로부(10), 제2유로부(20), 제4유로부(40), 제5유로부(50), 제6유로부(60)로 순차 이동되어 휠실린더부(100)에 공급된다. 이때, 제1밸브부(11)는 제1유로부(10)의 유로를 개방하고, 제4밸브부(41)는 제4유로부(40)의 유로를 개방하며, 제5밸브부(51)는 제5유로부(50)의 유로를 폐쇄할 수 있다.When the driver presses the pedal portion 81 during the normal braking operation, the oil in which the pressure is amplified in the master cylinder portion 82 flows through the first passage portion 10, the second passage portion 20, the fourth passage portion 40, The fifth flow path portion 50, and the sixth flow path portion 60, and is supplied to the wheel cylinder portion 100. At this time, the first valve portion 11 opens the flow path of the first flow path portion 10, the fourth valve portion 41 opens the flow path of the fourth flow path portion 40, and the fifth valve portion 51 Can close the flow path of the fifth flow path portion 50. [

도 4는 본 발명의 일 실시예에 따른 차량용 제동장치에서 흡입모드를 개략적으로 나타내는 도면이다. 도 4를 참조하여 흡입모드시 오일의 흐름을 설명하면 다음과 같다. 이러한 흡입모드는 차체 자세 제어 또는 급제동시 전동펌프부(90)가 구동되는 오일의 흐름이 될 수 있다.4 is a view schematically showing a suction mode in a vehicle braking device according to an embodiment of the present invention. The flow of oil in the suction mode will be described with reference to FIG. Such a suction mode may be a flow of oil in which the electric pump unit 90 is driven in the body posture control or sudden braking.

흡입모드시 운전자가 페달부(81)를 가압하지 않더라도 제어부의 제어로 전동펌프부(90)가 구동된다. 이러한 전동펌프부(90)는 제3유로부(30)에 의해 오일저장부(83)와 직결되어 있으므로, 전동펌프부(90)의 구동시 오일 흡입력이 향상된다. 그리고 오일이 마스터실린더부(82)를 거치지 않으므로, 유로 저항이 감소하여 전동펌프부(90)의 토출 성능이 향상된다.In the suction mode, even if the driver does not press the pedal portion 81, the electric pump portion 90 is driven under the control of the control portion. Since the electric pump unit 90 is directly connected to the oil reservoir 83 by the third flow path unit 30, the oil suction force is improved when the electric pump unit 90 is driven. Since the oil does not pass through the master cylinder portion 82, the flow path resistance is reduced and the discharge performance of the electric pump portion 90 is improved.

전동펌프부(90)가 구동되면, 오일저장부(83)에 저장된 오일이 제3유로부(30), 제2유로부(20), 제4유로부(40), 제5유로부(50), 제6유로부(60)로 순차 이동되어 휠실린더부(100)에 공급된다. 이때, 제1밸브부(11)는 제1유로부(10)의 유로를 폐쇄하고, 제4밸브부(41)는 제4유로부(40)의 유로를 개방하며, 제5밸브부(51)는 제5유로부(50)의 유로를 폐쇄할 수 있다.When the electric pump section 90 is driven, the oil stored in the oil reservoir 83 flows through the third flow path portion 30, the second flow path portion 20, the fourth flow path portion 40, the fifth flow path portion 50 And the sixth flow path portion 60, and is supplied to the wheel cylinder portion 100. At this time, the first valve portion 11 closes the flow path of the first flow path portion 10, the fourth valve portion 41 opens the flow path of the fourth flow path portion 40, and the fifth valve portion 51 Can close the flow path of the fifth flow path portion 50. [

도 5는 본 발명의 일 실시예에 따른 차량용 제동장치에서 감압모드를 개략적으로 나타내는 도면이다. 도 5를 참조하여 감입모드시 오일의 흐름을 설명하면 다음과 같다. 이러한 감압모드는 휠실린더부(100)의 오일 압력 강하가 필요할 때 이루어진다.5 is a view schematically showing a decompression mode in a vehicle braking system according to an embodiment of the present invention. The flow of oil in the damping mode will be described with reference to FIG. This decompression mode is performed when the oil pressure drop of the wheel cylinder portion 100 is required.

감압모드시, 휠실린더부(100)에 저장된 오일은 제6유로부(60), 제5유로부(50), 제7유로부(70)로 순차 이동되어 오일저장부(83)에 저장된다. 이때, 제4밸브부(41)는 제4유로부(40)의 유로를 폐쇄하고, 제5밸브부(51)는 제5유로부(50)의 유로를 개방할 수 있다.The oil stored in the wheel cylinder portion 100 is sequentially transferred to the sixth flow path portion 60, the fifth flow path portion 50 and the seventh flow path portion 70 and stored in the oil storage portion 83 . At this time, the fourth valve portion 41 may close the flow path of the fourth flow path portion 40, and the fifth valve portion 51 may open the flow path of the fifth flow path portion 50.

도 6은 본 발명의 일 실시예에 따른 차량용 제동장치에 의한 시간 대비 휠실린더부의 압력을 개략적으로 나타내는 그래프이다. 도 6을 참조하면, 본 발명의 일 실시예에 따른 차량용 제동장치(1)는 별도의 어큐뮬레이터가 삭제되고, 오일저장부(83)에서 전동펌프부(90)로 직접 오일이 이동할 수 있다. 반면에, 종래 제동장치는 어큐뮬레이터가 추가되고, 오일저장부의 오일이 마스터실린더를 통과한 후 전동펌프로 이동된다. 이로 인해, 본 발명의 일 실시예에 따른 차량용 제동장치(1)는 종래 제동장치 보다 휠실린더부(100)의 유압이 높다.6 is a graph schematically showing the pressure of the wheel cylinder part with respect to time by the vehicle braking device according to the embodiment of the present invention. Referring to FIG. 6, in the braking system for a vehicle 1 according to an embodiment of the present invention, a separate accumulator is removed, and oil can be directly transferred from the oil storage portion 83 to the electric pump portion 90. On the other hand, in the conventional braking device, an accumulator is added, and the oil in the oil reservoir is passed to the electric pump after passing through the master cylinder. Therefore, the vehicular braking device 1 according to the embodiment of the present invention has a higher hydraulic pressure than the conventional braking device.

본 발명의 일 실시예에 따른 차량용 제동장치(1)는 제3유로부(30)가 오일저장부(83)와 전동펌프부(90)를 연결함으로써, 전동펌프부(90) 구동시 오일저장부(83)에 저장된 오일이 마스터실린더부(82)를 우회하여 이동되어 유로 저항이 감소하고 오일 토출력이 향상될 수 있다.The braking device 1 for a vehicle according to the embodiment of the present invention is configured such that the third flow path portion 30 connects the oil reservoir portion 83 and the electric pump portion 90, The oil stored in the portion 83 can be moved by bypassing the master cylinder portion 82 to reduce the flow path resistance and improve the oil toe output.

본 발명의 일 실시예에 따른 차량용 제동장치(1)는 제3유로부(30)에 밸브가 삭제되어 제조비용이 절감될 수 있다.The braking device 1 for a vehicle according to the embodiment of the present invention can reduce the manufacturing cost by eliminating the valve in the third flow path portion 30. [

본 발명의 일 실시예에 따른 차량용 제동장치(1)는 휠실린더부(100)의 오일이 오일저장부(83)로 이동되어 저장됨으로써, 별도의 어큐뮬레이터가 삭제되어 제조비용이 절감될 수 있다.The braking device 1 for a vehicle according to an embodiment of the present invention can save manufacturing cost by eliminating the accumulator due to the oil of the wheel cylinder 100 being moved to and stored in the oil reservoir 83. [

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

10 : 제1유로부 11 : 제1밸브부
20 : 제2유로부 30 : 제3유로부
40 : 제4유로부 41 : 제4밸브부
50 : 제5유로부 51 : 제5밸브부
60 : 제6유로부 70 : 제7유로부
80 : 오일가압부 81 : 페달부
82 : 마스터실린더부 83 : 오일저장부
90 : 전동펌프부 100 : 휠실린더부
101 : 바퀴 110 : 체크밸브부10: first flow portion 11: first valve portion
20: second flow portion 30: third flow portion
40: fourth flow path portion 41: fourth valve portion
50: fifth flow portion 51: fifth valve portion
60: sixth flow path portion 70: seventh flow path portion
80: oil pressure portion 81: pedal portion
82: master cylinder part 83: oil storage part
90: electric pump part 100: wheel cylinder part
101: Wheel 110: Check valve part

Claims (5)

오일의 압력을 증폭시키는 오일가압부에 연결되고, 제1밸브부에 의해 유로가 개폐되는 하나 이상의 제1유로부;
상기 제1밸브부와 전동펌프부를 연결하는 제2유로부;
상기 오일가압부와 상기 전동펌프부를 연결하는 제3유로부;
상기 제2유로부와 연결되고, 제4밸브부에 의해 유로가 개폐되는 하나 이상의 제4유로부;
상기 제4밸브부에 연결되고, 제5밸브부에 의해 유로가 개폐되는 제5유로부;
상기 제5유로부에 연결되고, 바퀴에 제동력을 제공하는 휠실린더부와 연결되는 제6유로부; 및
상기 제5밸브부에 연결되고, 상기 제3유로부와 연결되는 제7유로부;를 포함하는 것을 특징으로 하는 차량용 제동장치.
At least one first flow path portion connected to the oil pressurizing portion for amplifying the pressure of the oil and opened and closed by the first valve portion;
A second flow path connecting the first valve unit and the electric pump unit;
A third flow path portion connecting the oil pressure portion and the electric pump portion;
At least one fourth flow path portion connected to the second flow path portion and having a flow path opened and closed by a fourth valve portion;
A fifth flow path portion connected to the fourth valve portion and having a flow path opened and closed by a fifth valve portion;
A sixth flow path connected to the fifth flow path portion and connected to a wheel cylinder portion for providing a braking force to the wheel; And
And a seventh flow path portion connected to the fifth valve portion and connected to the third flow path portion.
제 1항에 있어서, 상기 오일가압부는
운전자에 의해 조작되는 페달부;
상기 페달부에 의해 구동되어 오일 압력을 증폭시키는 마스터실린더부; 및
상기 마스터실린더부에 연통되어 오일이 저장되는 오일저장부;를 포함하는 것을 특징으로 하는 차량용 제동장치.
2. The oil pressure control apparatus according to claim 1,
A pedal portion operated by a driver;
A master cylinder part driven by the pedal part to amplify the oil pressure; And
And an oil reservoir communicating with the master cylinder unit to store oil therein.
제 2항에 있어서,
상기 제1유로부는 상기 마스터실린더부에 연결되고,
상기 제3유로부는 상기 오일저장부에 연결되는 것을 특징으로 하는 차량용 제동장치.
3. The method of claim 2,
The first flow path portion is connected to the master cylinder portion,
And the third flow path portion is connected to the oil storage portion.
제 1항에 있어서,
상기 제1밸브부와 상기 제4밸브부는 노멀오픈밸브이고,
상기 제5밸브부는 노멀클로즈밸브인 것을 특징으로 하는 차량용 제동장치.
The method according to claim 1,
Wherein the first valve portion and the fourth valve portion are normally open valves,
And the fifth valve portion is a normally closed valve.
제 1항에 있어서,
상기 제5유로부 또는 상기 제7유로부 중 어느 하나 이상에 배치되고, 상기 휠실린더부의 잔압을 유지하는 체크밸브부;를 더 포함하는 것을 특징으로 하는 차량용 제동장치.The method according to claim 1,
Further comprising a check valve portion disposed in at least one of the fifth passage portion and the seventh passage portion and configured to maintain a residual pressure of the wheel cylinder portion.
KR1020160168991A 2016-12-12 2016-12-12 Brake device for vehicle KR102620006B1 (en)

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JP2016112946A (en) * 2014-12-12 2016-06-23 日立オートモティブシステムズ株式会社 Braking device and brake system
JP2016150633A (en) * 2015-02-17 2016-08-22 日立オートモティブシステムズ株式会社 Brake device

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JP2016112946A (en) * 2014-12-12 2016-06-23 日立オートモティブシステムズ株式会社 Braking device and brake system
JP2016150633A (en) * 2015-02-17 2016-08-22 日立オートモティブシステムズ株式会社 Brake device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220057833A (en) * 2020-10-30 2022-05-09 현대모비스 주식회사 Integrated Braking Device for Vehicle And Braking Method Therefor
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