KR100224408B1 - A device for preventing nose-down in an automobile - Google Patents

A device for preventing nose-down in an automobile Download PDF

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Publication number
KR100224408B1
KR100224408B1 KR1019960073236A KR19960073236A KR100224408B1 KR 100224408 B1 KR100224408 B1 KR 100224408B1 KR 1019960073236 A KR1019960073236 A KR 1019960073236A KR 19960073236 A KR19960073236 A KR 19960073236A KR 100224408 B1 KR100224408 B1 KR 100224408B1
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KR
South Korea
Prior art keywords
vehicle
valve
tube
fluid
nose
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Application number
KR1019960073236A
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Korean (ko)
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KR19980054106A (en
Inventor
이태희
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR1019960073236A priority Critical patent/KR100224408B1/en
Publication of KR19980054106A publication Critical patent/KR19980054106A/en
Application granted granted Critical
Publication of KR100224408B1 publication Critical patent/KR100224408B1/en

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Classifications

    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/42—Other control devices or valves characterised by definite functions with a quick braking action, i.e. with accelerating valves actuated by brake-pipe pressure variation
    • 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
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2230/00—Monitoring, detecting special vehicle behaviour; Counteracting thereof
    • B60T2230/04—Jerk, soft-stop; Anti-jerk, reduction of pitch or nose-dive when braking

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

본 발명에 의한 자동차의 노즈다운 방지장치는, 제동시 차체의 무게중심이 후방측으로 향하도록 다수개의 유체공간이 형성된 튜브와, 상기 튜브내의 다수개의 유체공간 사이에 설치되어 브레이크페달의 밟는 정도를 감지하는 제동량감지센서의 감지 신호를 받아 작동되는 유압펌프에 의하여 개폐되는 밸브로 이루어진 것을 특징으로 하므로 본 발명은 제동시 차체의 무게중심을 후방측으로 이동하도록 튜브내를 다수개의 유체공간으로 구분형성시켜 브레이크의 밟는 깊이에 따라 밸브를 개폐하는 유압펌프를 구비하여 구성함으로써 자동차의 노즈다운을 방지할 수 있다.An apparatus for preventing a nose down of a vehicle according to the present invention is installed between a tube having a plurality of fluid spaces formed so that the center of gravity of the vehicle body is directed toward the rear side, and detecting a step of the brake pedal being installed between the plurality of fluid spaces in the tube. The present invention is characterized by consisting of a valve that is opened and closed by a hydraulic pump that is operated by receiving the detection signal of the braking amount sensor to separate the plurality of fluid space in the tube to move the center of gravity of the vehicle body to the rear side during braking By providing a hydraulic pump for opening and closing the valve in accordance with the stepping depth of the brake it is possible to prevent the nose down of the vehicle.

Description

자동차의 노즈다운 방지장치Nose down prevention device of car

본 발명은 자동차의 노즈다운 방지장치에 관한 것이다.The present invention relates to an apparatus for preventing nose down of an automobile.

일반적으로 자동차의 주행중 제동조작을 하면 그의 감속도에 따라 차체의 앞부분이 가라앉는 현상, 이른바 노즈다운(nose down)이 발생한다. 이 원인은 자동차의 중심위치보다 낮은 타이어 접지면에 제동력이 뒤로 향하여 작용하므로 머리가 스그러지는 모멘트가 발생하기 때문이다.In general, braking operation while driving a car causes the front of the vehicle to sink according to its deceleration, so-called nose down. This is because the braking force acts backwards on the tire ground plane lower than the center position of the vehicle, causing the head to collapse.

이와 같은 현상이 일어나면, 앞바퀴의 하중이 증가하고 그 분량만큼 뒤바퀴의 하중이 감소하게 되며, 감속도가 클 때는 뒤바퀴가 로크되어 주행불안정을 일으키게 된다.When this happens, the load on the front wheel increases and the load on the rear wheel decreases by that amount, and when the deceleration is large, the rear wheel is locked to cause driving instability.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로써, 본 발명의 목적은 급제동시에 발생하는 노즈다운을 방지하도록 한 자동차의 노즈다운 방지장치를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a nose down prevention device of a vehicle to prevent the nose down occurs during sudden braking.

상기와 같은 목적을 실현하기 위하여 본 발명에 의한 자동차의 노즈다운 방지장치는 제동시 차체의 무게중심이 후방측으로 향하도록 다수개의 유체공간이 형성된 튜브와, 상기 튜브내의 다수개의 유체공간 사이 사이에 설치되어 브레이크페달의 밟는 정도를 감지하는 제동량감지센서의 감지 신호를 받아 작동되는 유압펌프에 의하여 개폐되는 밸브로 이루어진 것을 특징으로 한다.In order to realize the object as described above, an apparatus for preventing a nose down of a vehicle according to the present invention is installed between a tube in which a plurality of fluid spaces are formed so that the center of gravity of the vehicle body faces toward the rear side, and a plurality of fluid spaces in the tube. The valve is characterized by consisting of a valve that is opened and closed by a hydraulic pump that operates by receiving a detection signal of the brake amount sensor for detecting the step of the brake pedal.

도1은 본 발명에 의한 자동차의 노즈다운 방지장치를 설치한 개략도.1 is a schematic view of installing a nose down prevention device of a vehicle according to the present invention.

도2는 본 발명에 의한 자동차의 노즈다운 방지장치를 도시한 단면도.2 is a cross-sectional view showing a nose-down prevention device of a vehicle according to the present invention.

도3은 본 발명에 의한 노즈다운 방지장치의 밸브를 도시한 사시도이다.Figure 3 is a perspective view showing a valve of the nose down prevention device according to the present invention.

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

3 : 튜브 4 : 유압펌프3: tube 4: hydraulic pump

5 : 제동량감지센서 6 : 밸브5: braking amount sensor 6: valve

도1은 본 발명에 의한 자동차에 노즈다운 방지장치를 설치한 개략도이고, 도 2는 본 발명에 의한 자동차의 노즈다운 방지장치를 도시한 단면도이며, 도 3은 본 발명에 의한 노즈다운 방지장치의 밸브를 도시한 사시도를 나타낸 것이다.1 is a schematic diagram of a nose down prevention device installed in a vehicle according to the present invention, Figure 2 is a cross-sectional view showing a nose down prevention device of a vehicle according to the present invention, Figure 3 is a nose down prevention apparatus according to the present invention A perspective view of the valve is shown.

도1 내지 도3에 도시된 바와 같이, 본 발명에 의한 자동차의 노즈다운 방지장치는 제동시 차체(1)의 무게중심이 후방측으로 향하도록 다수개의 유체공간(2)이 형성된 튜브(3)와, 상기 튜브(3)내의 다수개의 유체공간(2) 사이 사이에 설치되어 브레이크페달의 밟는 정도를 감지하는 제동량감지센서(5)의 감지신호를 받아 작동되는 유압펌프(4)에 의하여 개폐되는 밸브(6)로 이루어져 있다.As shown in Figures 1 to 3, the nose-down prevention device of the vehicle according to the present invention comprises a tube (3) formed with a plurality of fluid space (2) so that the center of gravity of the vehicle body (1) toward the rear side when braking; Is installed between the plurality of fluid space (2) in the tube (3) is opened and closed by a hydraulic pump (4) operated in response to the detection signal of the brake amount sensor (5) for detecting the step of the brake pedal It consists of a valve (6).

상기 유체공간(2)는 차량의 전측으로 부터 1실 내지 4실(2a)(2b)(2c)(2d)로 형성되어 있고, 상기 밸브(6)는 하나의 격판(6a)과 링(6b)이 크로스되어 회전하면서 1실 내지 4실(2a)(2b)(2c)(2d)로 유체의 이동을 개폐하도록 되어 있다.The fluid space 2 is formed of one to four chambers 2a, 2b, 2c and 2d from the front side of the vehicle, and the valve 6 has one diaphragm 6a and a ring 6b. ) Are moved so as to open and close the movement of the fluid to one to four chambers (2a) (2b) (2c) (2d) while being rotated crosswise.

다음에, 본 발명의 작용에 대하여 설명한다.Next, the operation of the present invention will be described.

먼저, 자동차의 제동시 운전자가 브레이크페달을 밟으면, 제동량감지센서(5)는 브레이크페달의 밟는 깊이를 감지하여 상기 유압펌프(4)에 전달하고, 상기 유압펌프(4)는 그와 연결된 상기 튜브(3)의 1실 내지 4실(2a)(2b)(2c)(2d)의 사이에 다수개 설치된 밸브(6)를 순차적으로 개방함으로써 차량의 무게 중심이 후방측으로 이동하게 되는 것이다.First, when the driver presses the brake pedal during braking of the vehicle, the braking amount sensor 5 detects the stepping depth of the brake pedal and transmits it to the hydraulic pump 4, and the hydraulic pump 4 is connected to the hydraulic pump 4. By sequentially opening a plurality of valves 6 installed between one chamber to four chambers 2a, 2b, 2c, and 2d of the tube 3, the center of gravity of the vehicle moves to the rear side.

앞에서 설명한 바와 같이, 본 발명에 의한 자동차의 노즈다운 방지장치에 의하면, 제동시 차체의 무게중심을 후방측으로 이동하도록 튜브내를 다수개의 유체공간으로 구분형성시켜 브레이크의 밟는 깊이에 따라 밸브를 개폐하는 유압펌프를 구비하여 구성함으로써 자동차의 노즈다운을 방지할 수 있다.As described above, according to the apparatus for preventing the nose down of the vehicle according to the present invention, the inside of the tube is divided into a plurality of fluid spaces so as to move the center of gravity of the vehicle body to the rear side during braking to open and close the valve according to the stepping depth of the brake. By providing a hydraulic pump, it is possible to prevent the nose down of the vehicle.

Claims (2)

제동시 차체의 무게중심이 후방측으로 향하도록 다수개의 유체공간이 형성된 튜브와, 상기 튜브내의 다수개의 유체공간 사이사이에 설치되어 브레이크페달의 밟는 정도를 감지하는 제동량감지센서의 감지 신호를 받아 작동되는 유압펌프에 의하여 개폐되는 밸브로 이루어진 것을 특징으로 하는 자동차의 노즈다운 방지장치.When braking, the center of gravity of the vehicle body is directed to the rear side, and a plurality of fluid spaces are formed between the plurality of fluid spaces in the tube is operated by receiving the detection signal of the braking amount sensor to detect the step of the brake pedal The nose-down prevention device of a vehicle, characterized in that made of a valve that is opened and closed by a hydraulic pump. 제1항에 있어서, 상기 유체공간은 차량의 전측으로 부터 1실 내지 4실로 형성되어 있고, 상기 밸브는 하나의 격판과 링이 크로스되어 회전하면서 1실 내지 4실로 유체의 순차적인 이동에 따라 개폐되도록 된 것을 특징으로 하는 자동차의 노즈다운 방지장치.According to claim 1, wherein the fluid space is formed of one to four chambers from the front side of the vehicle, the valve is opened and closed in accordance with the sequential movement of the fluid to one to four chambers while rotating one plate and the ring cross Anti-nose down device of the vehicle, characterized in that.
KR1019960073236A 1996-12-27 1996-12-27 A device for preventing nose-down in an automobile KR100224408B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960073236A KR100224408B1 (en) 1996-12-27 1996-12-27 A device for preventing nose-down in an automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960073236A KR100224408B1 (en) 1996-12-27 1996-12-27 A device for preventing nose-down in an automobile

Publications (2)

Publication Number Publication Date
KR19980054106A KR19980054106A (en) 1998-09-25
KR100224408B1 true KR100224408B1 (en) 1999-10-15

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